The accident happened before 9 p.m. at the Marshall County Coal Mine, county Emergency Management Director Tom Hart said. The cause of the roof collapse is unknown.
“The Marshall County Coal Company’s employees and management send their sincere condolences and prayers to the Garloch family,” the company said in a statement.
State and federal mine officials will work with the owner of the mine portal to determine the cause of the accident, Hart said.
The mine is owned by the Murray Energy Corporation.