At least one person has died, and at least two people remain unaccounted for, while dozens have been injured following multiple explosions at the U.S. Steel Clairton plant.

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.

An explosion Monday at a U.S. Steel plant near Pittsburgh has left one dead, dozens wounded and two people unaccounted for, with emergency workers on site trying to rescue them, officials said.