A massive explosion rocked the US Steel Clairton Plant near Pittsburgh on the morning of Monday, August 11, 2025, killing one person and injuring or trapping dozens more under rubble. The blast occurred around 10:51 am at the sprawling industrial facility in the Monongahela Valley, sending thick black smoke billowing into the midday sky. Emergency responders, including Allegheny County Emergency Services and multiple local agencies, rushed to the scene with at least 15 ambulances to aid victims. Officials confirmed two people remain unaccounted for.
Witnesses described the ...