The investigation into what caused a deadly explosion at Tennessee plant could last for days. Here’s what we know

An explosion at a Tennessee facility that manufactured military and demolition explosives killed 16 people and triggered seismic readings hundreds of miles away. Investigators from multiple agencies, including the FBI, are still combing through the heavily damaged site, and the investigation into the cause is expected to last for days. Recovery efforts are complicated by the presence of ordnance at the site, and authorities are using DNA testing to identify victims. The company, Accurate Energetic Systems, called the incident a "tragic accident." The blast occurred early Friday morning, shaking homes and scattering debris over a wide area. Responders secured the site by late morning, but the search for remains and any potential survivors proved fruitless. Investigators are examining cell phone technology, employment records, and conducting controlled explosions as part of their methodical approach. The ATF has stated they will hold those responsible accountable if criminal activity is involved, or ensure lessons are learned if the incident was accidental. All 16 victims have been identified, and authorities have begun notifying their families. The close-knit community is struggling with the loss, with many residents having personal connections to the victims. This tragedy has brought back painful memories of past disasters that have affected the area. Counseling services are being offered to support those affected by the explosion. Previous safety concerns have been raised at the plant. Federal records indicate the company was fined by OSHA in 2019 for violations related to personal protective equipment, employ... download the app to read more