At least 10 people have died and 18 are missing after torrential rains battered Hebei province in northern China.
Officials evacuated more than half its 11.5 million people by noon (04:00 GMT) on Saturday from areas thought to be at high risk of landslides and floods.
Storm Doksuri, which hit mainland China last week, has brought the worst rains in 140 years.
China's weather agency issued a red alert to warn people about the "geological risks".
Hebei province, neighbouring Beijing is said to be one of the worst affected areas.
Clean-up operations are under way after the floods engulfed residential homes, destroyed infrastructure and submerged entire districts.