BEIJING—An explosion at an industrial park in eastern China killed six people on March 21 and seriously injured 30, authorities and state media said.
State media said authorities were investigating the cause of the blast.
Video footage and images on state media showed a fire and shattered windows in nearby buildings.
Among the injured were children at a kindergarten near the industrial park, state media said.
Public anger over safety standards has grown in China over industrial accidents ranging from mining disasters to factory fires that have marred three decades of swift economic growth.
The Chinese regime has pledged to improve safety in factories, though explosions and other incidents are still commonplace.
In November, two people were killed and 24 others injured in an explosion at a machinery plant in the northern Chinese province of Jilin. And in the city of Ningbo, two people were killed in a factory explosion.
In August, five people were killed in an explosion at an aluminum plant in the eastern city of Jiangsu.
In July, 19 people died in a blast at a chemical plant in the southwestern province of Sichuan.
By Se Young Lee & Min Zhang. The Epoch Times contributed to this report.