Rescue crews in China are sifting through wreckage north of Shanghai, looking for survivors.
At least 47 people were killed when an explosion rocked the industrial zone there on Thursday.
The deadly explosion followed a fire at a pesticide factory in Yancheng City in Jiangsu Province.
Chinese state media say firefighters are still battling small fires after working through the night to put out the main blaze.
Witnesses report seeing injured workers running from the burning factory, and China’s earthquake administration reported a 2.2 magnitude quake at the time of the blast.
Public anger has grown in China over the lack of safety standards after a string of deadly industrial incidents in recent years.
China’s work safety administration reported 13 safety problems at this pesticide factory after an inspection last year.
In November 2018, an explosion near a factory in northern China killed at least 23 people.
And in August of 2015 a series of explosion rocked a container storage facility in a port city of Tianjin.
The cause of Thursday’s disaster remains under investigation.