Rescuers scrambled to find buried survivors Saturday after a powerful earthquake on Indonesia's Sulawesi island killed dozens, injured hundreds and left more feared trapped in the rubble of collapsed buildings, as monsoon rains lashed the disaster-struck region.
At least 46 people died after the 6.2-magnitude quake struck in the early hours of Friday, triggering panic among residents of the island, which was hit by a 2018 quake-tsunami disaster that killed thousands.
Search-and-rescue worked through the night as they pulled dozens of bodies from beneath crumpled buildings in Mamuju, a city of about 110,000 people in West Sulawesi province, where a hospital was flattened and a shopping mall lay in ruins.
Others were killed south of the city after the quake struck, as a strong aftershock jolted the area Saturday morning.
Planes and boats packed with food and other emergency supplies were arriving, with the navy reportedly sending a ship equipped with mobile medical services as Mamuju's still-standing hospitals were flooded with hundreds of injured.
Rescuers said a shortage of heavy equipment was slowing the search effort, while thousands left homeless by the quake set up makeshift shelters on higher ground -- many little more than tarpaulin-covered tents that were lashed by heavy downpours.
"We're running out of food. There hasn't been any aid from the government yet," 24-year-old survivor Desti told AFP from hard-hit Majene, adding that some survivors at the camp needed medical attention.
"Some people are using coconut leaves as mats," she added.
Many survivors are unable to return to their destroyed homes, or too scared to go back fearing more quakes or a tsunami, said Desti, who like many Indonesians goes by one name.
Authorities have not given a figure for the number of residents who could still be trapped under buildings reduced to twisted metal and concrete chunks, including the hospital that collapsed with more than a dozen patients and staff inside.
On Saturday, authorities said they had pulled eight corpses from under the building, while five members of a family of eight were found dead in the crumpled remains of their home.
Among the Mamuju survivors was a pair of young sisters plucked from under the mass of concrete and other debris. The pair are now being treated in hospital.
"His Holiness Pope Francis expresses his heartfelt solidarity with all those affected by this natural disaster," the Vatican said in a statement.
"He prays for the repose of the deceased, the healing of the injured and the consolation of all who grieve."
Landslides triggered by the heavy rains and quake blocked the main access road out of the seaside city, scuttling some residents' efforts to flee.
The city's airport had also been damaged, while the regional governor's office was also partly destroyed, authorities said.
"While the extent of the earthquake damage is still unclear, we know children are often the most vulnerable following disaster," it said.
"It will be essential that children are prioritised in any response, as they may have witnessed the death of loved ones or become separated from their parents."
The quake's epicentre was 36 kilometres (22 miles) south of Mamuju and it had a relatively shallow depth of 18 kilometres.
In neighbouring Kalimantan, Indonesia's section of Borneo island, at least five people had died in heavy flooding while dozens more were missing, according to reports.
Indonesia, a sprawling Southeast Asian archipelago of nearly 270 million, experiences frequent seismic and volcanic activity due to its position on the Pacific "Ring of Fire", where tectonic plates collide.
In 2018, a 7.5-magnitude quake and a subsequent tsunami in Palu on Sulawesi left more than 4,300 people dead or missing.
On December 26, 2004, a 9.1-magnitude earthquake struck off the coast of Sumatra and triggered a tsunami that killed 220,000 throughout the region, including around 170,000 in Indonesia.
