An explosion at the US Steel Clairton plant, located just outside Pittsburgh, Pennsylvania, has resulted in one fatality and ten injuries. The incident occurred on Monday, prompting a large-scale search and rescue operation for another individual believed to be trapped beneath the debris.

Authorities are still investigating what caused the explosion, and locals have been advised to keep their windows closed due to smoke in the vicinity. The Clairton facility is the largest coking operation in North America, approximately 15 miles south of Pittsburgh, employing around 1,300 workers.

Governor Josh Shapiro and Senator John Fetterman have both been on the scene, offering support as rescue efforts continue. US Steel's President, David Burritt, assured the public that the company is cooperating with investigations. Meanwhile, Clairton's Mayor Richard Lattanzi expressed sorrow over the day’s events.

Historically, Clairton Coke Works has faced scrutiny over pollution issues, leading to hefty fines in recent years. The plant was fined nearly $2 million last year for operational issues and $2.2 million in 2023 for exceeding emissions limits. The ongoing inquiry into this explosion adds to the facility's troubled history.