The U.S. Chemical Safety and Hazard Investigation Board has released an update on its investigation into the BioLab fire, the September 29 inferno that engulfed a BioLab industrial building, shrouding neighborhoods in chemical smoke for days and forcing thousands of Georgia residents to shelter in place in each night or evacuate altogether.

The U.S. Chemical Safety and Hazard Investigation Board released an update into the investigation of the chemical reaction and toxic gas release that caused a massive fire at the Bio-Lab facility in Conyers on Sept.

Federal investigators have disclosed new findings about the BioLab chemical plant fires near Atlanta, uncovering a cascade of events leading to a hazardous chemical cloud. On September 29, the Conyers plant erupted,