A devastating explosion occurred at the U.S. Steel Clairton plant in Pennsylvania, resulting in at least one confirmed death and numerous injuries. Search and rescue operations are ongoing as officials report that at least two individuals are still unaccounted for, while multiple workers were trapped under the debris. Eyewitness reports describe the explosion as sounding like thunder, and video footage showcases the extensive damage caused. Local authorities have urged nearby residents to stay indoors due to safety concerns, as crews continue to search through the rubble following this tragic incident.