Firefighters are seen at the accident site in Tongling, east China's Anhui Province, Feb. 8, 2017. An explosion rocked a chemical plant in Tongling City of east China's Anhui Province on Wednesday night, local authorities said. Casualties are unknown. The accident happened at around 10:40 p.m. in a suburb area, according to Tongling's fire department. The fire has been bought under control. (Photo/Xinhua)
