"We have so far found 134 bodies of victims, 25 of them still unidentified," said Masri Zen, an official of the coordination post for the search efforts in the North Sumatran town of Bahorok.

Two bodies were found on Saturday before search efforts were halted for hours because of heavy rains, he said by telephone. He could not provide more details on the identity of the latest victims found.

He said the bodies of six foreigners were among the dead found so far.

"About 130 other people are still reported missing," Zen added. An official from the same office in Bahorok said Saturday that rescuers were still searching for 105 people.

Rescuers in recent days have given different figures for the number reported missing and caution that the figure could include some people who were out of town when the flood hit.

Search parties, Zen said, were now combing areas that had not yet been covered by the search operation, including irrigation channels linked to the river. Heavy machinery was also being used to move the piles of logs and mud.

The flood swept through Bahorok, 96 kilometres (60 miles) northwest of Medan, late Monday night, destroying more than 450 buildings and other structures.

Bahorok is on the eastern fringes of a park that is home to a famed orangutan refuge popular with tourists who also go trekking and white-water rafting in the area.

Senior officials, including Vice President Hamzah Haz, and environment minister Nabiel Makarim have said rampant illegal logging in the neighbouring Gunung Leuser national park helped cause the disaster.

TERRA.WIRE