Fire fighters are seen at the scene of a chemical plant blast in Zhangzhou, southeast China's Fujian province, Apr. 7, 2015. The blast happened at around 6:56 p.m. Monday. Six injured people are being treated at a hospital. This is the second accident in 20 months at the same facility that produces paraxylene (PX), an industrial chemical used for making fiber and plastics. (Photo/Xinhua)
