Guard possibly sleeping on the job probed at Oak Ridge National Laboratory

photo Nicholas Luciano, a Spallation Neutron Source central room shift supervisor at Oak Ridge National Laboratory, monitors data in this file photo.

The security contractor at Oak Ridge National Laboratory is investigating possible sleeping on the job by a guard and unauthorized use of a phone inside a secure building where uranium that could be used in a nuclear weapon is stored.

A WSI Oak Ridge spokeswoman told the Knoxville News Sentinel an investigation has begun.

Photographs of someone described Tuesday by WSI spokeswoman Courtney Henry as a person "in question" were distributed to WSI Oak Ridge, the U.S. Department of Energy and the media.

Henry declined to provide any names and said it is not known if the photos were taken inside the building where fissionable uranium-233 is kept.

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