A factory explosion in a port south of Shanghai has injured at least 30 people, knocked down buildings and left streets littered with damaged cars and debris, news reports say.
There was no immediate word of possible deaths or the severity of injuries.
The explosion at a factory in Ningbo, one of China’s busiest ports, struck a district on the Yong River at about 8:55 on Sunday morning, the official Xinhua News Agency and other outlets reported.
At least 30 injured were taken to hospitals, according to Huanqiu.com, a website operated by the newspaper Global Times.
China has a long history of deadly fires and industrial accidents, often blamed on negligence. In 2015, a blast blamed on improperly stored chemicals killed at least 173 people in Tianjin, a port east of Beijing.
Authorities have launched repeated safety crackdowns but the rapid evolution of industry and overhaul of urban neighbourhoods lead companies to cut corners.
Sunday’s blast knocked down nearby residential buildings but those were vacant and in the process of being demolished, Huanqiu.com said. It said there might have been people in the area collecting scrap for recycling.
Bystanders said the explosion might have been caused by a gas pipeline that was damaged during demolition work, but the Ningbo gas company said it had no lines in the area, the newspaper China Youth Daily reported on its website.