One dead, multiple injured as U.S. Steel Plant in Clairton Pennsylvania suffers explosion

Two people were killed and ten others injured after multiple explosions rocked the U.S. Steel Clairton Coke Works plant in Clairton, Pennsylvania on Monday. One previously missing person was rescued and hospitalized, while another was later found deceased, officials confirmed.

Emergency crews responded to the scene shortly before 11 a.m. Local EMS Chief Matthew Brown said the incident initially left two people unaccounted for. Search-and-rescue efforts continued throughout the day, involving 20 EMS agencies and 14 fire departments.

At a 3 p.m. press briefing, authorities announced that one missing individual had been rescued. Later, just before 9 p.m., they confirmed the discovery of a second victim’s body. The Allegheny County Medical Examiner is now in the process of notifying next of kin.

Officials say the situation is now stabilized, and the plant is under investigation by the Fire Marshal. The cause of the explosion has not yet been released.

Out of the ten people hospitalized, five were treated at AHN Jefferson Hills and have since been discharged. Several others, including two medics, were evaluated at the scene or taken to nearby hospitals. The total number of those treated on-site has not been confirmed.

Governor Josh Shapiro confirmed on X (formerly Twitter) that multiple explosions occurred at the plant. He assured the public that injured workers were receiving medical care and that state agencies remain actively involved. He urged residents to follow official instructions and stay away from the area.

U.S. Steel stated the incident occurred specifically at coke oven batteries 13 and 14. In a statement, CEO David B. Burritt emphasized that worker safety and environmental concerns are the company’s highest priorities and pledged full cooperation with authorities during the investigation.

Roughly 1,300 people work at the Clairton plant, which is one of the largest coke manufacturing facilities in the country.

In response to initial concerns, the Allegheny County Health Department had advised residents within a one-mile radius to stay indoors. That advisory has since been lifted, with no air quality violations detected by county monitors.

Lt. Gov. Austin Davis and Rep. Summer Lee both issued statements of support for the affected workers and emergency responders. Lee expressed sympathy for the victims and praised the rapid response of medical and rescue teams.

Eyewitness Zachary Buday, who was working nearby, described the moment of the explosion: “It felt like thunder. It shook the scaffold and the building. Then we saw black smoke rising from the mill.”

The Clairton facility has previously faced legal action over environmental concerns. In 2019, U.S. Steel agreed to an $8.5 million settlement related to air pollution violations. The plant has also been involved in lawsuits following a 2018 fire that damaged its pollution control systems.

Source: WTAE