Video shows a huge plume of black smoke above the U.S. Steel Clairton plant after deadly explosions on Monday.

At least one person has died, one person remains unaccounted for, and at least 10 people have been injured following multiple ...

At least one person has died, one person remains unaccounted for, and at least 10 people have been injured following multiple ...

At least one person has died, one person remains unaccounted for, and at least 10 people have been injured following multiple ...

At least one person has died, and at least two people remain unaccounted for, while dozens have been injured following ...

One person has died and dozens are reportedly injured or trapped under rubble following an explosion at a U.S. Steel plant ...

A major rescue mission is underway at the US Steel Clairton Coke Works plant near Pittsburgh, Pennsylvania, which exploded ...

An explosion at US Steels Clairton Coke Works in Allegheny County, Pennsylvania, injured several people but caused no ...

Allegheny County Emergency Services say a fire started at the plant around 10:51 a.m. There are no confirmed fatalities, ...

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

The Clairton Coke Works has faced a series of safety incidents and fines over the past decade, with Monday's deadly explosion raising new questions about operations at the century-old facility.

Coke is the fuel used to generate the 2,912-degree heat needed to melt iron ore to make steel. Making coke requires coal to be superheated to nearly 2,000 degrees itself so it becomes pure carbon. U.S ...