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Trisha Quinn is searching for her brother who she says was working at the time of multiple explosions at the U.S. Steel Clairton Coke Works plant in Pennsylvania.

Officials across the state of Pennsylvania are reacting following the deadly explosions at the U.S. Steel Clairton Coke Works plant.

The Allegheny County Health Department is advising people within one mile of the plant to remain indoors.

At least one person has died following multiple explosions that occurred at the U.S. Clairton Coke Works plant in Pennsylvania, and dozens are injured.

Sen. John Fetterman was on the scene Monday after multiple explosions occurred at U.S. Steel Coke Works in Clairton.

A timelapse from the Breathe Project captured an explosion at the U.S. Steel Clairton Coke Works plant in Pennsylvania.

Devastation and rubble could be seen from Sky 4, Pittsburgh's only news chopper, following an explosion at US Steel Clairton Coke Works plant.

The Allegheny County Health Department says residents who live near the U.S. Steel Clairton Coke plant can now resume normal activities following multiple explosions at the plant Monday morning.

"It shook my chest. It shook the building, then we saw the dark smoke rising from the steel mill," Buday said. "Put two and two together. It's like something bad happened.