12 killed in heavy rain in China's Zhengzhou

Related story: Storms, floods, typhoon hit country

In Hulunbuir, Inner Mongolia autonomous region, rescue workers were still scrambling on Tuesday to deal with the aftermath of ruptures at two reservoirs following downpours on Sunday that prompted the evacuation of 3,698 people.

Local authorities mobilized 1,100 rescuers and two aircraft on Tuesday to search affected areas for any people trapped by floods downstream of the reservoirs.

No casualties have been reported.

"Not a single household and not a single person should be left behind," the local flood control headquarters said.

Many areas in northern parts of the country, including northern and western Henan province and northern Hebei province, are forecast to experience torrential rains from Tuesday to Wednesday, the National Meteorological Center said.

Some areas may suffer from severe convective weather, which refers to a sudden and very destructive weather phenomenon that includes thunderstorms, hail, gales and heavy local rainfall, it said, adding that the maximum hourly precipitation in these areas may exceed 70 millimeters.