Louisiana authorities on Monday provided new details about a domestic violence event that ended in eight children being murdered.

Shamar Elkins allegedly killed the children, seven of whom were his own, on Sunday morning in Shreveport. The children ranged in age from 3 to 11, according to the Caddo Parish Coroner’s Office. Two other people were wounded and remain in the hospital. The two women, identified as Elkins’s wife and his girlfriend, are undergoing surgery, officials said Monday.