Beijing, Aug. 11 -- A powerful typhoon left at least 28 people dead in southeastern China, after a landslide backed up a river that broke through debris and inundated homes, state media reported Sunday.

Another 20 people remained missing in Zhejiang province, the official Xinhua News Agency said.

Typhoon Lekima made landfall at 1:45 a.m. Saturday in Wenling city, about 300 kilometers (190 miles) south of Shanghai, the China Meteorological Administration said.

The deaths occurred in Yongjia county on the outskirts of Wenzhou, a major port city. The river blocked by a landslide rose to a level of 10 meters (30 feet) within 10 minutes, trapping 120 villagers, Xinhua said.

More than 1 million people were evacuated before the storm struck,...