Explosions late Monday morning at Clairton Coke Works in Allegheny County killed two people and injured 10 others, as officials found one person who initially was missing. Katie Boyd’s son was working at the plant when the explosion occurred around 10:30 a.

Two people have died and 10 are injured following an explosion at a Pennsylvania steel plant on Monday, Allegheny County police said.

One person has died and dozens are reportedly injured or trapped under rubble following an explosion at a U.S. Steel plant near Pittsburgh on Monday, an Allegheny County emergency services spokesperson told the Associated Press.