Cause of deadly chemical plant blast in east China revealed

Photo taken on March 23, 2019 shows the site of a chemical plant blast in Xiangshui County of Yancheng, east China's Jiangsu Province. The deadly chemical plant blast in eastern China's Jiangsu Province on March 21 has been identified as an extremely severe production safety accident caused by prolonged illegal custody of hazardous chemical waste, according to the State Council investigation group on the case. (Xinhua/Li Bo)