Hospital officials confirm seven of the 10 people injured in Monday’s deadly explosion at the U.S. Steel Clairton Coke Works have been released.

The Chemical Safety and Hazard Investigation Board’s probe into the deadly explosion at the Clairton Coke Works could take a year or more and will include worker interviews, careful examination of daily operations and a cinematic recreation of the blast.

The office of the Allegheny County medical examiner identified a second man who was killed in an explosion at the Clairton Coke Works factory Monday morning. According to the medical examiner, 52-year-old Steven Menefee died at the scene of the blast.

When horrific situations strike in the Pittsburgh area, such like the U.S. Steel Clairton coke plant explosion that killed two people, the community steps in to help.

Timothy Quinn, 39, of East Huntingdon Township, also died in the incident. Ten other people were injured. Three of them are still hospitalized.

Workers were heating coal and preparing for routine maintenance when an explosion rocked a U.S. Steel plant outside Pittsburgh

Gwaley called DeHosse, who owns Sparkles by Shell, a Monongahela-based screen print and embroidery business. They are now selling T-shirts, hoodies, and yard signs with the words “Clairton Strong” to raise money for the steelworkers impacted by the explosion.