Firefighters try to extinguish a fire at a petrochemical plant in Zhangzhou, Fujian province April 7, 2015. At least six people were injured after an explosion hit part of an oil storage facility on Monday at Dragon Aromatics, Xinhua reported. The fire, which had been put off, resumed at around 7:40 p.m. on Tuesday. It was later extinguished again at around 11:40 p.m., at the plant that produces paraxylene, or PX, a chemical used in making polyester fibre and plastics, state media said. Picture taken April 7, 2015. REUTERS/Stringer CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA