Photo taken on Jan. 6, 2017 shows Xingyu Colliery in Dengfeng, central China's Henan Province. The death toll from a gas outburst at Xingyu Colliery Wednesday has risen to 12, local authorities said Friday. (Xinhua/Feng Dapeng)
Photo taken on Jan. 6, 2017 shows Xingyu Colliery in Dengfeng, central China's Henan Province. The death toll from a gas outburst at Xingyu Colliery Wednesday has risen to 12, local authorities said Friday. (Xinhua/Feng Dapeng)