A gas outburst that occurred at Songshu coal mine in China has claimed the lives of 12 workers.
The mine is located in the Jilin province city of Baishan and is owned by Tonghua Mining Industry Company.
Xinhua News Agency said that gas leaks from coal deposits are primarily due to the presence of the main component carbon monoxide.
At the time of the incident, more than 700 miners were working underground and nearly 692 miners managed to escape, PTI reported.
Altogether, 13 miners were trapped, 12 died and one injured person was rushed to a nearby hospital.
The rescue operation was carried out by a total of 316 rescuers and cause of the accident is yet to be determined.
The news follows collapse of a coal mine in China's Shaanxi province in January 2016 that killed 11 mine workers.
AP reported Yulin city's propaganda department as stating that the miners were believed to be found a day after the Liujiamao coal mine collapsed.
China recently announced plans to cut jobs of 1.8 million workers in the coal and steel industries as part of its £10bn restructure programme, following a slump in the country's manufacturing activity.