One person has died, one is unaccounted for and 10 are injured following an explosion at a Pennsylvania steel plant on Monday, Allegheny County police said.
The incident at the U.S. Steel Clairton Coke Works plant in Clairton, about 15 miles outside of Pittsburgh, trapped people under rubble, prompting a rescue operation, according to Allegheny County officials.
Many of the injuries are non-life-threatening, Allegheny County Emergency Services spokesperson Kasey Reigner said.
Aerial footage of a reported explosion at US Steel Clairton Coke Works in Clairton, Pa., Aug. 11, 2025.
WTAE
Aerial footage of a reported explosion at US Steel Clairton Coke Works in Clairton, Pa., Aug. 11, 2025.
WTAE
“Injured employees have now been transported to local hospitals to receive care, and search-and-rescue efforts remain active at the plant,” Gov. Josh Shapiro on social media. “Lori and I are eternally thankful for the bravery of our first responders — and we continue to pray for the entire Clairton community.”
David B. Burritt, president and CEO of U.S. Steel, said in a statement, “We are working closely with relevant authorities to investigate the cause of the incident.”
“Nearly 1,300 dedicated men and women work at the Clairton Plant each day, performing their jobs with the utmost safety,” Burritt said. “During times like this, U.S. Steel employees come together to extend their love, prayers, and support to everyone affected.”
CCTV video shows a possible explosion at US Steel Clairton Coke Works in Clairton, Pa., Aug. 11, 2025.
CMU CREATE Lab/Breathe Project
Allegheny County Director of Communications Abigail Gardner said the Health Department is on site monitoring air quality.
The Bureau of Alcohol, Tobacco, Firearms and Explosives is also responding, according to a spokesman.
This is a developing story. Please check back for updates.
ABC News’ Michael Pappano contributed to this report.
Source: abc news
