“On behalf of (Governor Tom) Wolfe’s administration, DEP and the Pennsylvania Emergency Management Agency, our thoughts are with the individual’s family and our heartfelt condolences for their loss,” the statement said.

A spokesman for Arcosa, the company that owns the mine, said in a statement that it was “deeply saddened to confirm the loss of life as a result of an accident at the Laurel Aggregates mine.”

“Our deepest sympathies go out to the families and friends of our employees,” spokesman Jeff Eller said, adding that the company was working with authorities to determine the cause of the accident.

In the statement, Fraley said the DEP and Mine Safety and Health Administration will conduct an investigation into the collapse, “which will include securing the accident site, interviews with mine personnel and underground observations.”

“DEP will issue an initial action report containing general findings and a final report, which will fully identify the cause and potential corrective actions that the mine operator needs to take to ensure that this type of situation does not recur,” the statement said.