CLEVELAND -- The U.S. man sentenced to life in prison for holding three women captive over a decade and raping them repeatedly will start his term isolated from other inmates.

A spokeswoman for Ohio's prisons department says Ariel Castro won't go into general population once he enters the prison system. She says it's for his own protection because of his high profile.

Castro remained in jail Friday, a day after a judge sentenced him to life in prison plus 1,000 years. He will undergo medical and mental health evaluations after arriving in prison.

Castro made a deal with prosecutors that spared him from a possible death sentence before admitting to imprisoning the women in his home.

He has pleaded guilty to aggravated murder, kidnapping and rape.