Workers were pushing coke out of huge ovens and preparing for routine maintenance when an explosion rocked a U.S. Steel plant ...

Two people were killed and at least 10 others were injured after multiple explosions occurred at the U.S. Clairton Coke plant ...

Though earlier reports cited witness accounts of multiple explosions, U.S. Steel on Tuesday said only one explosion occurred ...

Authorities said their investigation has shifted to the cause of the explosion after they accounted for everyone who was missing.