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Tennessee authorities announced Saturday that no survivors have been recovered from a massive explosion at a rural manufacturing plant a day earlier after more than 300 investigators combed through the blast site.

The blast happened at Accurate Energetic Systems near Bucksnort, located about 50 miles west of Nashville, just before 8 a.m. local time Friday.

Since then, more than 300 people had conducted a "very delicate, very methodical" search of the scene, Humphreys County Sheriff Chris Davis said at a press conference Saturday.

"I can tell you that more than 300 people have been through almost every square inch of this facility, and at this time, we've recovered no survivors," Davis said, at times growing emotional.

TEN

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