A Tennessee police officer is under investigation for alleged misuse of a police radio that reportedly transmitted his having sex in a squad car while on duty.

Officer Dion Anthony of the Mount Mariah precinct is under administrative investigation because of allegations of improper radio communications, according to the Memphis Police Department.

The department would not discuss the nature of last week's incident, including whether the alleged transmission occurred via the car-mounted radio or the portable one that police officers carry with them.

According to ABC affiliate WPTY, however, the officer's alleged sexual encounter was broadcast over the radio while Anthony was in the squad car with an unidentified woman.

Anthony, 36, was relieved of duty March 13, a day after the alleged incident. He could not be reached for comment.

Anthony joined the force in July of 2007 and worked the 2 p.m. to 10 p.m. shift.  The improper communication was broadcast between 8:45 p.m. and 9 p.m. on an open channel, police allege.