a Further 30 people were injured in the Saturday accident in the area of Xilingol in the region of Inner Mongolia. The condition of those described as stable.
It was not reporting what type of mine it is. The accident is under investigation.
in China, despite efforts to improve security and tackle illegal mining. In October, died 21 miners when a gruvgång collapsed in the province of Shandong.
Read more: 19 dead in mine accident in China