The Pennsylvania county where an explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others announced Thursday that it is stepping up ...

Two workers were killed and nearly a dozen were injured while they were preparing for a maintenance project at the Clairton facility.

Workers were heating coal and preparing for routine maintenance when an explosion rocked a U.S. Steel plant outside ...

The health department began deploying mobile air units Thursday provided by Pennsylvania’s Department of Environmental ...

Producers of metals and other raw materials declined as an elevated wholesale inflation reading drove up the value of the U.S. dollar. Chilean copper giant Antofagasta posted an increase in first-half ...

Ten others were injured, and people who live near the plant were urged to stay inside. Three explosions at U.S. Steel’s ...

Pennsylvania has a huge opportunity to lead in AI — this century’s railroad moment. But will PA seize the moment?