At least one person has died, one person remains unaccounted for, and at least 10 people have been injured following multiple explosions at the U.S. Steel Clairton plant on Monday.First responders were alerted to the incident just before 11 a.

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. A fire erupted at Clairton Coke Works around 10:51 a.m. ET, the AP reported.

A major rescue mission is underway at the US Steel Clairton Coke Works plant near Pittsburgh, Pennsylvania, which exploded and left several people injured and trapped under rubble