The Clairton Coke Works is considered the largest coking operation in North America and one of four major U.S. Steel plants ...

The plant, a massive industrial facility along the Monongahela River south of Pittsburgh, is considered the largest coking ...

An explosion Monday at a U.S. Steel plant near Pittsburgh has left people trapped under the rubble, with emergency workers on ...

The explosion, followed by several smaller blasts, could be felt in the nearby community and prompted county officials to ...