SAYRE, Okla. (AP) — Authorities say inmates are rioting at a private prison in southwestern Oklahoma.

The Beckham County Sheriff's office said it received a call about 11:50 a.m. Tuesday from Sayre police requesting assistance at the North Fork Correctional Facility. A sheriff's dispatcher says officers were at the scene but she didn't know the status of the disturbance.

The dispatcher says she didn't have any reports of injuries, but the Daily Elk Citian reported that ambulances were carrying injured people away from the facility.

The medium-security prison is owned by Nashville, Tenn.-based Corrections Corporation of America and has about 2,400 beds. In 2009, the prison housed more than 900 inmates from California, about 320 from Idaho and about 150 from Wyoming.

Oklahoma corrections officials referred calls to the prison, which couldn't immediately comment.