Police officers evacuate children stranded in floodwaters in Hefei, Anhui province, on Monday. The city has adopted traffic restrictions for some flood-affected roads and mobilized officers to help with flood relief efforts. (Photos: Xinhua)

Aerial photo taken on July 20, 2020 shows flood-stricken area in Guzhen town of Yu'an district in Lu'an city, East China's Anhui province.

Aerial photo shows floodwater from the Huaihe River being diverted through the Wangjiaba floodgate into the Mengwa Flood Detention Area in Funan county, East China's Anhui province, July 20, 2020.

A trapped woman walks in water with the help of a rescuer in Guzhen town of Yu'an district in Lu'an city, East China's Anhui province, July 20, 2020. Since July 2, continuous heavy rains have affected 3.64 million residents and forced the evacuation of over 600,000 people in Anhui province.

Floodwater from the Huaihe River is diverted into the Mengwa Flood Detention Area in Funan county, East China's Anhui province, July 20, 2020.

Photo taken on July 19, 2020 shows floodwater being discharged from the Three Gorges Dam in Central China's Hubei province. The second flood of China's Yangtze River this year has smoothly passed the Three Gorges Dam on Sunday as the inflow into the reservoir has decreased.

Photo taken on July 19, 2020 shows floodwater being discharged from the Three Gorges Dam in Central China's Hubei province.