“As of 7.30pm, the mountain flood has killed four people, severely injured three and lightly injured six others,” Pengzhou emergency response authorities said in a statement.
The flood comes during a summer of extreme weather in China, with multiple cities including Shanghai recording their hottest days ever during a heatwave in July.
Scientists say extreme weather across the world has become more frequent due to climate change, and is likely to grow more intense as global temperatures rise.
China’s national observatory has issued a red alert for high temperatures as the mercury is expected to soar past 40 degrees Celsius (104 Fahrenheit) across swathes of the country this weekend, state news agency Xinhua reported on Saturday.
Severe flooding in southern China in June displaced more than half a million people and caused an estimated US$250 million in economic damage.