BOISE, Idaho (AP) — Prison officials say one inmate and a guard suffered injuries during a fight between inmates at the state's private prison. Corrections Corporation of America officials say the fight broke out Friday night at the Idaho Correctional Center south of Boise. CCA officials say the fight didn't last long and was broken up by prison staff. The prison was immediately placed on lockdown. The company did not provide any details of the injury to the inmate who was taken to a Boise hospital for treatment. The guard was treated and released. The Ada County Sheriff's Office is conducting a criminal investigation into the fight.