“It is with profound sadness that I share with you that the U. S. Steel colleague who had been unaccounted for has been located and confirmed deceased, following an extensive search and rescue effort," David Burritt, the company's CEO, said in a statement. At least 10 people were injured in the blast, officials said.

An explosion at a U.S. Steel facility in Pennsylvania has killed two people and injured 10 more, authorities said Monday. The explosion occurred at the Clairton Coke Works in Clairton, Pa., roughly 15 miles southeast of Pittsburgh,