Eight workers were killed and three injured in a coal mine gas leak in southwest China's Guizhou Province early Monday, local authorities said, Xinhua reported.
The accident occurred at about 3:30 a.m. at Luoduo Coal Mine in Yuni Township of Panxian County in Liupanshui City when 95 mine workers were underground.
Eighty-four miners escaped by themselves or were rescued out, said Tan Bo, a deputy director of Panxian county publicity department.
The mine was under technological renovation to expand annual capacity to 300,000 tonnes from 60,000 tonnes, Tan said.
Local work safety authorities were investigating cause of the accident.