MILWAUKEE -- A children's court prosecutor said that Milwaukee police are still trying to find all the individuals involved in the apparent gang rape of an 11-year-old girl.

A 16-year-old girl and a 15-year-old boy have been charged in the assault.

Criminal complaints said that the young girl was repeatedly assaulted by up to 19 boys in a north side home on Monday night as the 16-year-old girl told her what sex acts to perform.

The complaints filed in Milwaukee County Children's Court said that a 40-year-old relative of the 16-year-old also participated in the assault.

Assistant District Attorney Matthew Torbeson said that the victim has said 15 to 20 individuals were involved in the assault.

Torbeson said that the man is the uncle of the 16-year-old.

The prosecutor said that he will likely ask that the 15- and 16-year-olds be waived to adult court.