A massive search operation is underway in West Virginia, where officials say crews are "working around the clock" to locate a missing coal miner who became trapped in a flooded coal mine on Saturday afternoon.

The miner is the foreman of a 17-person team that struck a pocket of water inside of south-central Virginia's Rolling Thunder Mine, causing water to rush into the complex, said Nicholas County Commissioner Garret Cole, citing information from the local emergency management and homeland security agency as well as reporting by CBS News affiliate WOWK. Rolling Thunder Mine is in Nicholas County.

All of the other miners were accounted for in the aftermath of the flood, Cole said on Facebook late Sunday. Officials believe the foreman helped the team escape the flooding and that he is

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