Days of torrential rains in southern and central China have forced more than 300,000 people to flee their homes, the state-run Xinhua news agency says.
Floods, landslides and houses toppled by the rain killed at least 16 people in Hunan, Fujian and Guangxi. A number of people are still missing.
In Guangxi, the army and residents were struggling to shore up a breached dyke at the base of a water reservoir.
At least 15 people died in neighbouring Vietnam, officials say.
There are fears the death toll in the two countries will rise further.
Both are prone to major flooding during the annual summer rainy season.
|Liveleak on Facebook|