Secondary explosions have forced rescuers back from the burning site at Accurate Energetic Systems, according to the Hickman County Sheriff’s Office.
Humphreys County Sheriff Chris Davis told a news conference: “We do have several people at this time unaccounted for. We are trying to be mindful of families and that situation.”
The cause of the blast was not immediately known.
Video from the scene showed flames and smoke billowing from a field of debris.
Emergency crews were initially unable to enter the plant because of continuing explosions, Hickman County Advanced MT David Stewart said.
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