LEAVENWORTH, Kan. (AP) — Authorities are investigating the death of an inmate at a privately-run federal prison in Leavenworth.

The Kansas City Star reports 29-year-old Dillon Lane Reed died on Thanksgiving at the Leavenworth Detention Center.

Reed's attorney said he was notified of his client's death but was not told the cause of death or any circumstances.

Reed was being on federal drug charges.

The prison is operated by CoreCivic, a Tennessee-based company formerly known as Corrections Corporation of America.

The U.S. Marshals Service confirmed Reed's death and said an autopsy was conducted. The agency contracts with the company to house federal prisoners awaiting trial and sentencing.

Leavenworth police are conducting the death investigation.