A miner injured in a coal and gas outburst accident receives medical treatment in a hospital in Liupanshui City, southwest China's Guizhou Province, March 13, 2013. Twenty-one miners were killed and four others were missing in the accident which happened Tuesday evening at the Machang Coal Mine belonging to Gemudi Company of Guizhou Water and Mining Group, in Shuicheng County of Liupanshui City. All the 20 injured miners were under stable condition, according to local authorities. [Xinhua]

A miner injured in a coal and gas outburst accident receives medical treatment in a hospital in Liupanshui City, southwest China's Guizhou Province, March 13, 2013. Twenty-one miners were killed and four others were missing in the accident which happened Tuesday evening at the Machang Coal Mine belonging to Gemudi Company of Guizhou Water and Mining Group, in Shuicheng County of Liupanshui City. All the 20 injured miners were under stable condition, according to local authorities. [Xinhua]

A miner injured in a coal and gas outburst accident receives medical treatment in a hospital in Liupanshui City, southwest China's Guizhou Province, March 13, 2013. Twenty-one miners were killed and four others were missing in the accident which happened Tuesday evening at the Machang Coal Mine belonging to Gemudi Company of Guizhou Water and Mining Group, in Shuicheng County of Liupanshui City. All the 20 injured miners were under stable condition, according to local authorities. [Xinhua]