The bodies of a man wanted on rape charges and two girls thought to be his daughters were found Thursday in a vehicle near a power plant, authorities said.

Tennessee Valley Authority spokesman John Moulton said investigators were calling it an apparent murder-suicide.

The bodies and a suicide note were found by a TVA police officer who was patrolling a parking lot at the Bull Run plant near Oak Ridge.

The man had a gunshot wound and was slumped over the steering wheel in the front seat, Moulton said. The girls were in the back seat, but Moulton did not say how they were killed.

The man wrote in his suicide note that he killed his daughters, Moulton said. No names were immediately released.

There were two outstanding felony rape warrants against the man in Montgomery County, about 200 miles west of Oak Ridge, Moulton said. He also said the man was not an employee or contractor of TVA.