Rescuers were continuing to search for one missing worker at the Clairton Coke Works more than five hours after mid-morning explosions rocked the Mon Valley plant. The blasts killed one person and injured 10.

An explosion at a U.S. Steel plant near Pittsburgh on Monday left two people dead and at least 10 others injured, Allegheny County officials said. The explosion erupted at Clairton Coke Works at 10:51 a.

At least one person has died, and one person remains unaccounted for, while at least 10 people have been injured following multiple explosions at the U.S. Steel Clairton plant.