CHENGDU, Aug. 21 (Xinhua) -- Seven people died in a coal mine accident in southwest China's Sichuan Province on Wednesday, local emergency management authorities said.
At approximately 10 a.m. on Wednesday, a total of eight workers were trapped during an air shaft sealing operation in the coal mine in the Wutongqiao District of the city of Leshan in Sichuan.
Search and rescue efforts had confirmed the dea
