Authorities say flash floods and a landslide triggered by torrential rains on Indonesia's Sulawesi island have killed at least 10 people and left 20 others missing. Local police chief Capt. Yuslim Yunus said Friday the landslide blocked a river in Batanguru village of Mamasa district, causing it to burst out of its banks and wash away seven houses.

He says 10 bodies were recovered late Thursday of people who drowned or were buried in mud. The death toll may increase as rescue workers continue searching for those who are missing.

Seasonal downpours cause frequent landslides and flash floods in Indonesia, a chain of 17,000 islands where millions live in mountainous areas or near fertile flood plains.