At least 21 people were killed overnight after heavy rain lashed a township in central China's Hubei province this week.
Four are still missing after the downpour which lasted for 6 hours, from late Wednesday to early Thursday morning.
Severely hit areas include Suizhou, Nanzhang and Xiaogan.
The town of Liulin in Suizhou city was at the center of the storm.
One resident who's never left Liulin says he's never seen such a flood in his life.
Hubei's latest spell of torrential rains has triggered other natural disasters,
China's Emergency Management Ministry says it sent a team to facilitate rescue efforts.
Authorities say street disinfection began in areas as soon as the rain stopped.
One health official says staff and equipment were immediately mobilized to clear the streets.
We had 60 people and 6 vehicles. This is what we are supposed to do.
我们总共有60个人和6辆车 。这是我们应该做的 。
I'm sure it won't be finished tonight, because there's a lot to cover.
We go from there to there. We will proceed step by step.
Fire and rescue authorities say some 170 personnel and 13 boats have been dispatched for assistance, and more than 5,000 people have been evacuated to safety.
Hubei officials say reconstruction efforts are also underway in affected areas.