Efforts intensify to reach 10 trapped coal miners in Mexico

File - This Aug. 20, 2019, file photo, shows the coal stockpile at the Navajo Generating Station near Page, Ariz. Efforts to rescue 10 miners trapped in a collapsed and flooded coal mine in northern Mexico have intensified with hundreds of people involved in the operation. Authorities said Thursday that the collapse occurred after the miners breached a neighboring area filled with water on Wednesday. (AP Photo/Susan Montoya Bryan, File)

Efforts to rescue 10 miners trapped in a collapsed and flooded coal mine in northern Mexico intensified Thursday with hundreds of people involved in the operation, authorities said.

The collapse occurred after the miners breached a neighboring area filled with water on Wednesday, officials said. Authorities had not reported any contact with the trapped miners since the collapse.

The miners are trapped between two 200-foot deep mine shafts more than half flooded with water, Undersecretary of Defense Agustín Rádiala Suástegui said Thursday. Rescuers were working to pump water out of the flooded mine.