Relief and rescue operations continue in Indonesia after a massive earthquake and tsunami struck Sulawesi Island killing at least 1,948 people, according to the Indonesian National Board for Disaster Management which raised the death toll on Monday. More than 70,000 homes were destroyed or damaged by the magnitude 7.5 quake that struck on September 28, launching waves as high as six meters that slammed into Sulawesi at 800 km/h. More than 2,500 people were injured and almost 75,000 displaced. Children clean up schools Children in Palu have started going back to school on Monday to tidy up their classrooms a10 days after a major earthquake and tsunami hit their city. One school principal Kasiludin said authorities told all teachers to show up for work from Monday to collect information on the number of students returning to schools. "We won't force the students to come back because many are traumatised. But we must start again soon to keep their spirits up and so they don't fall behind," he said. At the SMP Negeri, 15 Palu middle school, fewer than 50 of its 697 students showed up. Government to stop search for bodies on October 11 Indonesia's government has said search efforts will continue until October 11, after which they hope people "cant start living like normal". On Sunday, the death toll went up to 1,763, with 2,632 people seriously wounded. So far, 186 people have been rescued in liquefaction areas, where the earth shifted and swallowed up buildings and people. Government officials are currently considering designating some areas as mass graves as hopes of recovering bodies fade. On Sunday, Christians, who make up about 10 percent of Palu's population, sought solace in sermons, Many traveled into the city in search of a church after their local place of worship was destroyed. As relief efforts finally began to reach remote areas, a clearer picture of the extent of the damage is starting to form. Almost 3,000 schools have been damaged, according to the Ministry of Education. Most of those worst hit are in the central Sigi district. Aid continues to arrive for Palu IDPs.Devastated areas may be made mass graves On Saturday, Indonesia's top security minister, Wiranto, said the government is considering designating Balaroa and Petobo - two Palu neighbourhoods essentially wiped off the map - as mass graves. Rescue efforts have halted as officials say there is little hope of finding survivors under the rubble after a week, but searches for remains continue. Petobo disappeared into the earth as the force of the quake liquified its soft soil. Liquefaction also struck a large section of Balaroa. WATCH: Indonesia disaster: Devastated areas may be made mass graves Hundreds of bodies are thought to be buried beneath the ruins of the two towns. Wiranto said it is not safe for heavy equipment to operate there and that the government is in discussion with local and religious authorities, as well as the victim's families, to halt search efforts and have these areas declared as mass graves, saying the victims can be considered "martyrs". New public health warning issued Rescuers issued a fresh public health warning on Saturday as more decaying corpses were unearthed from beneath the ruined city of Palu. There are fears that vast numbers of bodies could be buried beneath Petobo and Balaroa - two areas virtually wiped off the map. "Most of the bodies we have found are not intact and that poses a danger for the rescuers. We have to be very careful to avoid contamination," Yusuf Latif, a spokesman for the country's search and rescue effort told the AFP news agency. "We have vaccinated our teams, but we need to be extra cautious as they are exposed to health hazards. This is also a health concern for the public. It is very hard to control the crowd ... people might be exposed to danger." Cancellations, delays and overbookings resulted in long queues at Palu airport Also on Saturday, passengers faced a long wait at Palu airport due to cancellations, delays and overbooking of commercial flights, according to Al Jazeera's Ted Regencia who was reporting from the disaster-struck region. Some passengers, with bookings from Friday, were only accommodated by the airlines the following day. Parts of the city, meanwhile, were trying to return to normality, with some shops and food stalls opening and electricity restored. Parks become refugee camps In Palu, parks have become refugee camps for those whose houses have been destroyed and have nowhere else to go. Many are sleeping in the open, waiting for assistance. "There is still a lack of basic supplies in the affected areas, including here in the heart of Palu city where people have been camping for a week," said Al Jazeera's Wayne Hay. WATCH: Over 70,000 homeless after Indonesia disaster (1:41) "Despite all the money from the Indonesian government and offers of assistance from foreign governments, no one has been able to supply these people with temporary toilets or adequate shelter," he said, reporting from Palu. Refugees say they are grateful for the land to sleep on, but they need more help. "I can tell you there are some toilets over there, but they are full of excrement so I eat only once a day so I don't have to go," said Haji Ratnawati Tawaka, a Palu resident. UN seeks $50m for 'immediate' disaster aid The United Nations has said it is seeking $50.5m "for immediate relief" to help victims of the devastating quake and tsunami in Indonesia. The UN plan, published on Friday and developed in consultation with Indonesian government officials, outlined "how the humanitarian community working in the country will provide targeted, technical assistance". The UN plan aims to provide help to 191,000 people over the next three months, according to a statement by the global body's Indonesia office. According to UN estimates, 65,000 homes have suffered some form of damage, a figure that includes 10,000 homes "completely destroyed by the tsunami" and 15,000 homes severely damaged by the earthquake. Mass prayer held for victimsPeople attend a mass prayer for tsunami victims in Palu Hundreds of people gathered at Talise beach in Palu on Friday to attend a mass prayer for the victims one week after disaster wreaked havoc in the Muslim island of Sulawesi. With many of the mosques completely destroyed by tsunami waves, Friday prayers were held outside in different parts of Palu city. Women attend a mass prayer for Palu at Talise beach for the one-week tsunami anniversary in Palu, Indonesia. "I hope my dead son has gone to heaven because he was in the middle of praying," said Abu Shamsuddin, who attended the weekly prayers in the afternoon outside the damaged Agung Mosque. "Allah willing, heaven for him. I have faith in that." Men in prayer caps sat on prayer mats in an open field, some weeping openly. Others braved the scorching sun as they listened to the mosque's imam encouraging them to be courageous. Habib Saleh al-Idrus, the most popular Muslim cleric of central Sulawesi province, led a mass prayer marking the one week since the disaster struck Palu.'1,000 people may be buried in mud' Sutopo Purwo Nugroho, Indonesia's disaster management agency spokesman, said about 1,000 people may be buried in areas liquefied by the earthquake in Palu city's Balaroa and Petobo. The areas were swallowed by three-metre deep mud. Search-and-rescue operations have been hindered because the land is still too wet to manoeuvre on. So far, only 26 survivors have been found in Petobo and 48 in Balaroa. "We will continue searching," Sutopo said. Portion of Balaroa district of #Palu devastated by a 7.5 magnitude quake. It's been a week since the disaster struck on Friday. Death toll so far is up to 1,400+. Nat'l disaster agency quoted village elders as saying over 1,000 people could still be missing. In the Palu neighbourhood of Balaroa, about 1,700 houses were buried when the earthquake caused soil to liquefy, the national rescue agency said. Liquefaction is a phenomenon where saturated sand and silt take on the characteristics of a liquid during the intense shaking of an earthquake. Among the more than 1,550 people killed in the quake-tsunami were 34 children at a Christian bible study camp that was hit by liquefaction. Volunteers carry out search and rescue operation at a Palu wedding hall where six people are believed to be trappedNo signs of life under Mercure hotel A French rescue team using high-tech equipment failed to find anyone alive under the rubble of a hotel in Indonesia's central Sulawesi. Indonesians slam humanitarian response to tsunami (1:58) A member of the French organisation, Pompiers de l'urgence, said on Thursday the team's sensors "detected the presence of a victim" in the wreckage of the four-star Mercure Hotel in Palu. The device can pick up breathing and heartbeats, but the team also cautioned that gas leaks and other factors can result in false positives. On Friday, however, the resucers said no sign of life had been found by the equipment and the team was moving on to other areas. "Yesterday we had a heart beat and sign of breathing, there were no other movements so it means it was someone who was motionless, confined," said Philippe Besson, president of the organisation. "Today we have no signal." Rescue efforts since the September 28 quake have been greatly impeded by a shortage of heavy equipment. Authorities previously set a tentative deadline of Friday for finding anyone trapped under ruined buildings, although chances of pulling survivors alive from the rubble at such a late stage are almost zero. Search efforts focused on eight key locations on Friday, including a beach and the Balaroa area where the sheer force of the quake turned the earth temporarily to mush. "We have to use heavy equipment now because it is very difficult to sift through the rubble by hand," Yusuf Latif, a spokesman for Indonesia's search and rescue agency, told AFP news agency. Local military spokesman Muhammad Thohir said the death toll had risen to 1,558. Rismawati Hutauruk, 63, was buried after falling into a crevice that opened up during the quake Relief efforts kick into full gear After days of delays, international aid has finally started to arrive in the disaster zone, where the UN says almost 200,000 people are in need of humanitarian assistance. Survivors have ransacked shops and supply trucks in the hunt for basic necessities, prompting security forces to round up dozens of suspected looters and warn that they were prepared to open fire on thieves. About 20 planes carrying vital supplies such as tarpaulins, medical equipment and generators are now heading from all over the world to the disaster zone after a long delay. Indonesia was initially reluctant to accept outside help, insisting its own military could handle the response, but as the scale of the devastation became clearer, President Joko Widodo agreed to allow in foreign aid. Governments from Australia to Britain are flying in supplies, the United Nations has pledged $15m to the relief effort, and aid groups including Save the Children and the Red Cross are also on the ground. There were signs of life returning to normal, with children playing in the streets, music blaring out of radios and electricity back up and running in most places. Indonesia tsunami: Mass burials a daily reality "Things are improving," Azhari Samad, a 56-year-old insurance salesman, told AFP at a mosque in Palu. But for the area to recover fully from the disaster "will take years", he added. "The first six months will be traumatic, maybe in one year we have some progress. The government will help, people will help from all over the country. Indonesians have a big heart." Electricity restored in Palu Power was restored and some shops reopened in Indonesia's disaster-stricken city of Palu, The Associated Press said on Thursday. Traffic lights and televisions flickered back to life in the small city of 370,000 people, which has been the focus of the aid effort launched after last Friday's magnitude 7.5 earthquake and tsunami on the west coast of Sulawesi island. While international help in searching for survivors has gathered pace, communities in more remote areas have been cut off by damaged roads, landslides and crippled communications. "There are so many challenges with this disaster, it's never been so bad," said Frida Sinta, an aid volunteer trying to get basic food and other supplies out to fellow residents of Palu. 'Scene in Donggala is of devastation' Al Jazeera's Wayne Hay reports from Donggala, the first area hit by the tsunami, that aid has taken time to reach Donggala, as most of the rescue efforts after Friday's devastating disasters focused on Palu City. "People have been complaining that they are being treated like second-class citizens here because they are not receiving the aid [other] areas have," Hay said. "Slowly but surely, that is improving, the roads to Palu are opening so we are seeing some aid, some assistance, coming through here. "There is no search and rescuing operation going on, there are still people missing but they assume that these people have now been swept off to sea and will not be seen again." Indonesia disaster: Donggala still waiting for help Hay added: "The scene in Donggala is of devastation in the small, peaceful and once-picturesque fishing villages. As the tsunami came through here, it took absolutely everything with it. People's homes, businesses and their livelihood, as the wave swept through here, into the bay towards Palu city itself. "Officially, the death toll is just over 150 people, relatively low considering the number of people who live here and the size of the wave that came here... That is because a lot of people simply escaped… up onto some pretty high hills..." More than 600,000 children affected At least 600,000 children have been affected by the quake, Save the Children said, with many sleeping on the streets among ruins. "It's hard to imagine a more frightening situation for a child," said Zubedy Koteng, the group's child protection adviser. "Many children are in shock and traumatised, alone and afraid. Young children searching for surviving relatives will have witnessed and lived through horrific experiences which no child should ever have to see." People arrested for looting At least 92 people have been arrested for looting in areas devastated by the earthquake. Local television reported that the people arrested for looting were caught with goods including motor oil, tires, ceramic tiles, and farming equipment. They were from Palu and the surrounding districts struck by the disasters. Al Jazeera's Ted Regencia, reporting from the Balaroa area in Palu, witnessed a man armed with a katana being arrested by the Indonesian army for stealing motorcycle spare parts. The Indonesian army arrested a man for stealing motorcycle spare parts and confiscated the sword he was armed withIndonesian troops prepared to shoot looters as desperation grows Indonesia's military said it will shoot looters in the earthquake and tsunami-ravaged province of Sulawesi after desperate survivors emptied shops of food and water. Signs of desperation are growing with police officers forced to fire warning shots and tear gas to ward off people ransacking businesses. With food and clean water in short supply, survivors are battling thirst and hunger. "If there is looting again, we will quickly fire a warning shot and then shoot to immobilise," Colonel Ida Dewa Agung Hadisaputra told AFP news agency. According to the UN's humanitarian office, almost 200,000 people need urgent help, among them tens of thousands of children. Officials on the ground said while the government had invited offers of foreign help, there is still no "mechanism for this to be implemented". Volunteers continue to recover bodies on Thursday in the Petobo area of Palu [Ted Regencia/Al Jazeera] Denny Liem, 41, owner of the Roa Roa Hotel, said among 30 people believed trapped is a Korean member of a paragliding team [Ted Regencia/Al Jazeera] Foreign aid picks up for Indonesia's desperate quake survivors International efforts to help survivors of Indonesia's devastating earthquake and tsunami gathered pace on Thursday. Desperate residents on the west coast of Sulawesi island were scavenging for food in farms and orchards as the government struggled to overcome shortages of water, food, shelter and fuel in a disaster zone with no power and degraded communications. "The government of Indonesia is experienced and well-equipped in managing natural disasters, but sometimes, as with all other countries, outside help is also needed," UN Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator Mark Lowcock said in a statement. He announced an allocation of $15m. The International Federation of Red Cross and Red Crescent Societies said it was appealing for $22m to help Indonesia. Some aid from the UK and Australia as also due to arrive on Thursday. In all, about 20 countries have offered help. More than 66,000 homes were destroyed or damaged by the magnitude-7.5 quake and the tsunami it spawned on FridaySlow arrival of aid frustrates survivors A trickle of emergency aid is only now reaching parts of Sulawesi island and some increasingly desperate survivors are taking matters into their own hands. Climbing over reeking piles of sodden food and debris, a crowd on Wednesday searched a wrecked warehouse for anything they could salvage: cans of condensed milk, soft drinks, rice, candy and painkillers. "We came here because we heard there was food," Rehanna, a 23-year-old student wearing a red motorcycle helmet, told the Associated Press news agency. "We need clean water, rice." Children eat outside their tent for safety reasons after the earthquake in Biromaru village in Sigi [Beawiharta/Reuters]Women line up to buy rationed cooking gas in Palu. [Ted Regencia/Al Jazeera]'It's impossible she's alive' Palu resident Rikardi Safarudin found the house his mother was in when the tsunami hit the small city on Friday. The house was among those carried hundreds of metres by the waves of mud. "Looking at all this I know, really, it's impossible she's alive," he told Al Jazeera. "But I can't quite bring myself to give up hope." WATCH: 'Nightmarish' situation for Indonesia tsunami survivors Influx of aid and humanitarian workers at Palu airport Aeroplanes bringing in aid supplies, humanitarian workers and volunteers from different countries continued to land at the Palu airport late on Wednesday. "We've seen them arrive with their own cargo of medical assistance and kits that they've brought in," said Al Jazeera's Jamila Alindogan, reporting from the Palu airport. "We're also seeing an influx of forces, presence of the military as signs of reassurance from the government that life can be picked up here again and that security is very much in place," she added. With many areas inaccessible and blocked, machines to clear the debris have also been brought in, Alindogan reported. "There are areas that remain closed off, where many civilians are still believed to be trapped, and this is a logistical issue," she said. President Widodo: 'We want to revive economic activity' Indonesian President Joko Widodo has said that the evacuation process, cleaning and the search for victims in the quake-hit city of Palu are going according to plan. On his second visit to the affected area on Wednesday, Widodo stressed that the government wants to "immediately revive economic activity in markets and shops". "The first step is evacuating, after that is rehabilitation and reconstruction," he told Al Jazeera's Andrew Thomas in Palu. During his visit, Widodo scanned different areas of devastation within the city, met some of the evacuees and went to a hospital. "His presence here signals that the government is in full control," said Al Jazeera's Alindogan. "It is going to be a long process, but the government is basically assuring the people of Indonesia that they are in charge and you can see that just by how things are moving here at the airport," she added. Survivors in Donggala district are desperate for food and water, say aid workers [Athit Perawongmetha/ Reuters]'We're on our last legs': Survivors in Donggala plead for help Survivors in Donggala, a region of 300,000 people north of Palu and closer to the epicentre of Friday's earthquake, said they were scavenging for food in farms. Johnny Lim, a restaurant owner reached by telephone in Donggala town, told Reuters he was surviving on coconuts. "It's a zombie town. Everything's destroyed. Nothing's left," Lim said over a crackling line. "We're on our last legs. There's no food, no water." In another part of Donggala, Ahmad Derajat said survivors were scavenging for food in fields and orchards. "What we're relying on right now is food from farms and sharing whatever we find like sweet potatoes or bananas," said Derajat whose house was swept away by the tsunami, leaving a jumble of furniture, collapsed tin roofs and wooden beams. "Why aren't they dropping aid by helicopter?" he asked. Aid worker Lian Gogali described a perilous situation in Donggala, which includes a string of cut-off, small towns along a coast road north of Palu. "Everyone is desperate for food and water. There's no food, water, or gasoline. The government is missing," Gogali told Reuters. She added that her aid group had only been able to send in a trickle of rations by motorbike. The official death toll from the magnitude 7.5 earthquake and tsunami that hit the west coast of Sulawesi island has passed 1,407. But officials fear the toll could soar, as most of the confirmed dead have come from Palu, a small city 1,500 km northeast of Jakarta and losses in remote areas remain unknown, as communications are down and bridges and roads have been destroyed or blocked by landslides. Soputan spewed a column of ash more than 6000m into the air [Handout/ Indonesia's national disaster agency]'No casualties' from Sulawesi volcano eruption A volcano that erupted on Wednesday on disaster-struck Sulawesi island did not cause any additional casualties, Indonesia's National Disaster Agency said.