BEIJING (AP) — A pipeline in a coal mine in northwestern China has collapsed, killing 11 people, the official Xinhua News Agency and a local work safety official said Saturday.

The official at the provincial work safety bureau, who only gave his last name Han, said that two more people were missing from the accident that took place Wednesday in the city of Yulin in the northwestern province of Shaanxi. He said odds were slim they would be found alive.

Xinhua said 37 people were in a shaft when a cement pipeline collapsed in the state-owned mine that was under construction. It said rescued recovered two bodies and pulled out 24 people alive Wednesday.

China has some of the world’s deadliest mines, killing more than 100 people since the start of the year, but they are getting safer with stricter work safety enforcement.

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