Jacob Allen Morley, 28, was discovered to be missing late Sunday at a correctional facility in Tiptonville, Tenn., officials said.

© Tennessee Department of Corrections

The first 911 call from inside the prison was made at 8:40 p.m. It took about 30 minutes to verify its authenticity.

© Denny Simmons/The Tennessean/USA TODAY NETWORK, via Reuters