Tennessee explosion: What caused the blast in Accurate Energetic Systems, Bucksnort? First details

“We can confirm there has been an explosion at Accurate Energetic Systems in the Bucksnort area,” the local sheriff's office wrote on Facebook. "Emergency services are currently on the scene working to address the situation," it added. Humphreys County Sheriff Chris Davis reported ‘some’ fatalities.

Meanwhile, social media users brought up the 2014 explosion that rocked the Accurate Energetic Systems facility. In April that year, a blast at the property, then operating as Rio Ammunition, killed one person and left three others injured. The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) determined that the explosion was accidental and there was no foul play involved.

Friday's explosion, reported around at the McEwen facility on the Hickman-Humphreys County line, engulfed an entire building, scattering debris and igniting secondary blasts. The ATF, Homeland Security, and Tennessee Bureau of Investigation are on site, assisting with the probe, which has not yet determined a cause.