One of the two people killed in the Pennsylvania steel factory explosion on Monday has been identified as a father who came from a steel mill working family. Timothy Quinn, 39, was pronounced dead at the scene, the Allegheny County Medical Examiner’s Office said on Tuesday, in the blast at the U.S. Steel Clairton Coke Works plant.

The explosion, followed by several smaller blasts, could be felt in the nearby community and prompted county officials to warn residents to stay away from the scene so emergency workers could respond.