A fireman sprays water over a leaking ammonia storage tank at a chemical plant in Taixing City, east China's Jiangsu Province, July 26, 2013. A leakage was found at the 300-ton tank of Yichu Chemical Co., Ltd. at 7 a.m. Friday, leaving several people poisoned. Rescuers have taken emergency measures to stop the leak. (Xinhua/Yang Hai)