CLAIRTON, Pa. -- An explosion at a U.S. Steel plant near Pittsburgh left two dead and sent at least 10 to hospitals Monday and heavily damaged the sprawling facility, officials said. One worker was ...

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A U.S. Steel plant south of Pittsburgh exploded Monday morning, killing at least one person and hospitalizing at least 10 more, authorities said. One person remained missing into the afternoon ...

United States Steel on Tuesday detailed its billion-dollar multiyear growth plan with new owner Nippon Steel that includes modernizing the century-old steelmaker. The announcement comes just five ...