A gas explosion Saturday at the Andesheng Coal Mine in Jinsha, a county in Guizhou province, killed 10 workers and an unknown number were missing, the official Xinhua News Agency reported. Rescue efforts were under way, and the cause was being investigated.

On Sunday morning, flooding at the Liuhe Coal Mine in Hezhang, also in Guizhou, trapped 10 miners underground, the agency reported. Rescuers were trying to reach them, and it wasn't known whether they were dead or alive, it said. Following the accident in Jinsha, authorities closed all the mines in the county for inspections, Xinhua said.