LAKE CHARLES, La. (AP) — A federal prisoner has pleaded guilty to severely beating a fellow inmate twice in one day.

U.S. Attorney Stephanie A. Finley said Friday that 32-year-old Douglas Harris entered the plea Thursday before U.S. District Judge Patricia Minaldi to one count of assault at a federal correctional institution.

Finley's office says Harris assaulted the victim twice on April 1. One beating was caught on camera; the other was witnessed by a guard at the Federal Correctional Institution in Oakdale. The injured inmate's fingers and a leg were broken. He also suffered blurred vision, head pain and a seizure.

Information on why Harris was in custody was not released.

Harris faces up to 10 years in prison, three years of supervised release and a $250,000 fine.

Sentencing was set for Feb. 12.