Days of heavy rains have also triggered a landslide in South China's Guangxi Zhuang Autonomous Region, leaving four people dead.
The accident took place on Tuesday morning in Cangwu county, and buried a house in mud.
Rescuers recovered the bodies of the victims later in the evening. They included two elderly people and two children.
Torrential rains have battered Guangxi since the weekend. The rains have affected over 300-thousand residents.