Eleven workers were killed in a coal mine accident on Monday evening in Chongqing Municipality in southwest China.
A sudden burst of 400,000 cubic meters of gas and 2,800 tons of coal occurred at around 6:00 p.m. on Monday in the Zhongliangshan Coal Mine in western suburbs of the city.
The accident also left seven workers injured, and four others are still missing, sources said.
Chongqing Vice Mayor Wu Jianong and other officials rushed to the mine to join in the rescue efforts, and further investigation into the accident is underway.