BIRMINGHAM, Ala. (AP) — Police say an 8-year-old Alabama boy is charged with beating a 1-year-old girl to death while they were left home alone.

Birmingham police spokesman Sean Edwards says that a murder warrant has been obtained against the boy and that 26-year-Katerra Lewis also is charged with manslaughter in the death of her daughter, 1-year-old Kelcia Lewis. Police say several children ranging from age 2 to 8 were left home alone while Katerra Lewis and a friend went to a nightclub Oct. 11.

Edwards says the girl began crying while the children alone, and the boy attacked her. Edwards says the two weren’t related.

Police say the girl suffered severe head trauma and major damage to her internal organs.

Lewis has posted $15,000 bond, and the boy is in state custody.