A drain is seen overflowing after heavy rain hit Southwest 皇冠体育app's Chongqing municipality, July 9, 2010. The local meteorology bureau launched a level III emergency response after the heaviest rainfalls during this flood season hit downtown Chongqing and caused traffic congestion on Friday.[Photo/Xinhua]

Vehicles drive in a flooded street after a heavy summer rain hit Southwest 皇冠体育app's Chongqing municipality, July 9, 2010. The local meteorology bureau launched a level III emergency response after the heaviest rainfalls during this flood season hit downtown Chongqing and caused traffic congestion on Friday.[Photo/Xinhua]