Los Angeles police say they have arrested two women who allegedly tortured a 5-year-old boy.

Officer April Harding said Saturday the boy's mother, 24-year-old Starkeisha Brown, turned herself in Friday night. Brown's girlfriend, 21-year-old Krystal Matthews, was arrested the same day when she showed up for an appointment.

Harding says Brown will be held in custody without bail and faces one charge of torturing.

Matthews was charged with willful harm or injury to a child. Her bail was set at $100,000.

Harding did not know if the women had retained attorneys. She says the boy remains in hospital where he is being treated for serious injuries including burns to his hands and body and a broken tooth with a nerve exposed.