Summer heat wave sweeps across China (10/10)

Photo taken under water on July 24, 2013 shows children swimming in an outdoor swimming pool of a park in Hangzhou, capital of east China's Zhejiang Province. Local meteorological observatory issued a red alert for high temperature, warning that the highest temperature will reach 40.4 degrees Celsius on Wednesday, which also marked the hottest day on record. (Xinhua/Li Zhong)