McEWEN, Tenn. (AP) — Authorities say a blast in rural Tennessee that leveled an explosives plant and was felt for miles around killed 16 people and left no survivors.

The explosion left a smoldering wreck of twisted metal and burned-out vehicles at the Accurate Energetic Systems plant, which supplies and researches explosives for the military.

The cause of the blast is not known. Investigators are combing the charred property foot-by-foot searching for possible evidence.

THIS IS A BREAKING NEWS UPDATE. AP’s earlier story follows below.

McEWEN, Tenn. (AP) — The blast in rural Tennessee that leveled an explosives plant and was felt for miles around left no survivors, authorities said Saturday.

The total number of dead was unclear, as was the cause of the Friday blast. By the weekend, th

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