A car is submerged on Sandian West Road in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Wang Xiaowei)

Policemen transfer a senior citizen on Yingbin North Road in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Zhou Yonggan)

A policeman guides citizens on a waterlogging road in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Zhou Yonggan)

Cars move on a flooded road in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Wang Qi)

Two citizens ride a vehicle on the waterlogging road in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Zhou Yonggan)

A shop along the street is flooded in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Wang Xiaowei)

Citizens row a boat on a flooded road in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Wang Xiaowei)

A citizen is trapped in the house in Nanchang, capital of east China's Jiangxi Province, Aug. 21, 2012. A sudden rainstorm hit Nanchang on Tuesday evening, causing severe waterlogging in urban areas. (Xinhua/Wang Xiaowei)