HOHHOT - Three miners have been confirmed dead and another has been rescued after a colliery pit collapsed on Monday night in Inner Mongolia autonomous region, local authorities said on Thursday.

Rescue operations at the Huangyuchuan coal mine ended at 4:20 a.m. on Thursday as rescuers retrieved the body of the last trapped miner. The rescued worker is receiving medical treatment and is reportedly in a stable condition.

Four workers were trapped after the accident occurred at 11:54 p.m. on Monday at the mine located in the township of Xuejiawan in Jungar Banner. The mine is owned by Shenhua Yili Energy Co., Ltd.

China's mining industry is plagued by frequent accidents due to poor safety measures and lax supervision.

The accident occurred on the same day when five people choked to death after inhaling poisonous gas underground in a pyrite mine in central China's Hunan Province.

On Saturday, flooding at an iron mine in northeast China's Liaoning Province left five workers trapped. Rescuers have yet to locate the miners.