Authorities in China on Sunday were still searching for two missing people and investigating a coal mine operator, after at least 82 people were killed in a gas explosion in a mine shaft on Friday.
A total of 247 miners were reportedly underground at the time of the blast at the Liushenyu coal mine in the northern inland province of Shanxi, with 128 subsequently taken to hospital.
While rescue teams continued to search for two missing people with the help of a robot which was sent into the shaft to test conditions, local officials accused the mine operator of "serious breaches" of security regulations.
A spokesman wouldn't specify what exactly the breaches were, but information reported by local media suggests several cases of operative negligence.
China coal mine: 'Chaotic' scenes and 'inaccurate' information
