Dengfeng. 6th Jan, 2017. 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. © Feng Dapeng/Xinhua/Alamy Live News

- Image ID: HG6N1Y
Dengfeng. 6th Jan, 2017. 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. © Feng Dapeng/Xinhua/Alamy Live News
Xinhua / Alamy Stock Photo
Image ID: HG6N1Y