The Pennsylvania county where an explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others ...

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

The Clairton Coke Works, where an explosion killed two workers and injured 10, has a history of maintenance issues, ...

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

With no guarantee of more money pouring in from lawmakers before midnight, SEPTA says it will have no choice but to move forward with phase one of service cuts and ...

Family members tell Pittsburgh's Action News 4 Steven Menefee, a father of two, was a loving man who would give you the shirt ...

Regulators are temporarily stepping up pollution monitoring in the Mon Valley after a deadly explosion at U.S. Steel’s ...

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 ...

The office of the Allegheny County medical examiner identified a second man who was killed in an explosion at the Clairton ...

In a meeting with The York Dispatch editorial board, state Sen. Dawn Keefer said she's been advising caution when it comes to data center proposals.