Torrential rain has triggered flash floods and a landslide on Indonesia’s Sumatra island, killing at least 19 people and leaving seven others missing, officials said Sunday.

Tonnes of mud, rocks and uprooted trees rolled down a mountain late Friday, reaching a river that burst its banks and tore through mountainside villages in Pesisir Selatan district of West Sumatra said Doni Yusrizal, head of the local disaster management agency.