Manokwari – The death toll from flash floods in eastern Indonesia has risen to 110 with bodies still lying unclaimed in the mud four days after the disaster, an official said on Friday.

The remote seaside town of Wasior in West Papua province was devastated after a torrent of mud, rocks and logs struck it on Monday following torrential downpours.

Hundreds of homes were swept away and scores of people remain missing feared dead, with rescue workers unable to clear huge piles of debris due to shortages of heavy equipment.

"We face difficulties removing dead bodies as our rescuers don't have enough excavators," local official Yappi Akwan said, adding that 80 people were listed as missing.

He said thousands of residents faced shortages of food, clean water, medicine and shelters, and there were growing fears of disease outbreaks.

"The town already smells of rotting bodies and we all have to wear masks," he said. "We hope there'll be a quick response. We need the town to be sprayed with disinfectant to ward off disease."

Around 4,000 people, or almost a third of the population in Wasior's three worst affected neighborhoods, have fled to neighboring districts, the official said.

Wasior is 240 kilometers southeast of Manokwari, the capital of West Papua province, one of the poorest and least developed parts of the massive Indonesian archipelago.

The floods and landslides that hit the town on Monday came down from surrounding hills with a thunderous roar but many residents did not have time to escape.

Survivors said many of the victims drowned or were crushed by boulders and logs, which had been felled by timber workers in nearby forests.

Such events are expected to become more common in Indonesia due to a combination of climate change, land conversion and logging.