KOTA KINABALU (THE STAR/ASIA NEWS NETWORK) - Tonnes of mud, boulders, rocks and debris flowed down Mount Kinabalu after three days of heavy rain, forcing the evacuation of hundreds of people from their homes at the foothills of the mountain.

The mudflow - 10 days after the June 5 earthquake - hit Mesilau on the eastern face and Kiau on the western side, washing out and seriously damaging bridges as firemen began rescue operations in affected villages.

The mudflow began at about 3pm on Monday, blocking roads into Kiau and Mesilau, which is one of Sabah's key highland vegetable-growing areas.

Farmer Jassumiah Jati said she was among dozens of villagers from Kampung Mesilau who fled their homes after seeing huge boulders being carried down by fast-flowing mud in the river near them.

"It was scary to hear those boulders crashing down with the mud," she said, adding that they barely made it out of the Mesilau area before the bridges were damaged.

"Many are still unable to come out because the bridges have been washed away and they fear that mudslides will flow into their areas," Jassumiah said.

Police and firemen stopped anyone from entering the Mesilau area and were trying to help evacuate those stranded there.

As at 9.30pm, some 100 villagers had been evacuated on the order of the Ranau district officer.

Sabah Fire and Rescue Department chief Affendy Ramin said they evacuated four people while others who made it out from Mesilau were putting up with friends or relatives.

Hundreds fled the Mesilau area after mudslides flowed down on the eastern face of Mount Kinabalu. The mountain was hit by a magnitude 5.9 earthquake on June 5.

Mesilau is also the location of the Kinabalu Parks Mesilau nature centre, located adjacent to a resort.

Numerous holiday chalets, homestays and the Mount Kinabalu Golf Club are located at Mesilau.

Roads leading to the nature centre and the golf club were among those cut off.

The mudslides also flowed into Kampung Kiau Taburi, Naulu and Bersatu apart from Lobong-Lobong, and Kg Kaung on the western side of the mountain.

The SK Kiau Taburi was also hit by mudslides, although immediate damage could not be ascertained.

Some families moved out of their houses, while both the Kota Belud and Ranau district offices activated their natural disaster operations centres.

In Kampung Kiau, Kampung Lobong-Lobong and Kampung Kaung at the foothills on the western side of the mountain, boulders and mudslides have come down during the past 10 days.

Villagers have been reporting fish dying en masse due to the high mineral content in the rivers after the earthquake. They have also heard rocks falling from the mountain during the nearly 60 aftershocks.

The biggest of these, which measured 5.1 on the Richter scale, happened on Saturday.