Excavators were used as the rescue operation to find 47 missing miners in northern China began.

Video filmed in Alxa League in Inner Mongolia on February 22 shows firefighters and diggers working on the collapsed slope to search for missing workers.

Twenty-three emergency rescue teams with a total of 1,155 people are currently participating in the rescue operation, including seven national professional rescue teams with 255 people.

Experts conducted emergency on-site surveys to optimise rescue plans. They adopted a layered excavation and trapezoidal slope reduction method and conducted excavation, search and rescue work from both sides of the mountain.

As of 2:00 pm on February 24, six people have been killed, six were injured, and 47 are still missing.

The video was provided by local media with permission.

2月22日13时12分，内蒙古阿拉善盟孪井滩生态移民示范区辖区内蒙古新井煤业有限公司煤矿西采区边坡坍塌，造成现场多名作业人员和车辆被埋。截至2月24日14时，该事故造成6人死亡，6人受伤，47人失联。
事故发生后，当地立即调集救援力量，目前已有23支抢险救援队伍共1155人在现场参与救援，其中国家专业救援力量7支255人。
据介绍，此次坍塌事故形成了一个东西走向约500米、南北走向约200米、净高约80米的渣土堆。因坍塌面积大，救援一度受阻。
援专家对现场紧急勘察研究，优化救援方案，采取分层挖掘、梯形降坡的方式，从山体两侧开展挖掘搜救工作，坚持一边清理、一边搜救，剥离一层、探测一遍，一旦发现被困人员，迅速开展施救。
救援组同时划定警戒隔离区，调集边坡雷达等设备，随时监测边坡塌陷风险，防止出现次生灾害。