(CNN) — Officials investigating a large explosion that impacted a military and industrial explosives plant Friday morning in Tennessee have found no living victims, Chris Davis, sheriff of Humphreys County, said Saturday.

“At this time, we have recovered no survivors,” Davis said at a Saturday news conference.

CNN’s Nicquel Terry Ellis, Jason Morris, Caroll Alvarado, Chris Youd, Ray Sanchez, Casey Tolan, Josh Campbell, Dalia Faheid and Martin Goillandeau contributed to this report.

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