Blast at a Tennessee explosives plant leaves multiple people dead and missing, sheriff says

An explosion at a Tennessee military munitions plant has left multiple people dead and missing. The blast occurred Friday at Accurate Energetic Systems, about 60 miles southwest of Nashville.
Authorities say secondary explosions have prevented rescuers from approaching the site.

The cause of the explosion is not yet known. Emergency crews have been unable to enter the plant due to ongoing detonations. Residents miles away reported feeling the explosion, and video shows flames and heavy smoke rising from the debris.

The company has not responded to requests for comment. Local officials describe the incident as a tragedy for the community.