Three boys have been charged with sexual assault by Syracuse police for an alleged attack on a 12-year-old girl.

Police say two 13-year-olds and a 14-year-old boy attend HW Smith K-8 school. Two of them reportedly forced the girl into a boys bathroom while the third harassed the girl, including the act of "grinding" on her. The other two prevented the girl from leaving the bathroom. School district officials initially handled the problem, but did notify police.