Four workers were killed by poisonous fumes after a blast in a lead-zinc mine in southwest China"s Yunnan Province Monday, Xinhua quoted a local government official as saying. The accident occurred at 3:00 a.m. when explosives were used during the digging process in the mine at Xiaohe Township, Qiaojia County, said Yu Youqi, deputy head of the County government. The four workers, who worked underground in the shaft, died of suffocation by the poisonous fumes, Yu said. The workers were confirmed dead at 5:00 p.m. when their bodies were recovered, he said. --SPA
