epa12295260 Steam rises at the US Steel Clairton Coke Works in Clairton, Pennsylvania, USA, 12 August 2025. A series of explosions struck US Steel Clairton Coke Works on 11 August, leaving at least two people dead and many injured, according to officials. Emergency teams remain on scene as the investigation continues. EPA/JUSTIN MERRIMAN

epa12295254 Steam rises at the US Steel Clairton Coke Works in Clairton, Pennsylvania, USA, 12 August 2025. A series of explosions struck US Steel Clairton Coke Works on 11 August, leaving at least two people dead and many injured, according to officials. Emergency teams remain on scene as the investigation continues. EPA/JUSTIN MERRIMAN

epa12295261 Steam rises at the US Steel Clairton Coke Works in Clairton, Pennsylvania, USA, 12 August 2025. A series of explosions struck US Steel Clairton Coke Works on 11 August, leaving at least two people dead and many injured, according to officials. Emergency teams remain on scene as the investigation continues. EPA/JUSTIN MERRIMAN