Rescuers work at the explosion site in Hebei Keeperchemical Industries Co.,Ltd in Zhaoxian County, north China's Hebei Province, Feb. 28, 2012. Thirteen people were confirmed dead and more than forty injured people were hospitalized after the explosion went off at around 9 a.m. on Tuesday. The blast flattened one of the factory's workshops and broke window panes within a radius of 2,000 meters. Tremors were felt in at least three villages near the plant, according to local authorities. (Xinhua/Yang Shiyao)
