BROOKLYN - Police arrested a 13-year-old student at P.S. 155 Wednesday for allegedly sexually assaulting a fellow student.

The incident occurred at 10 a.m. Tuesday, according to police. The student has been charged with assault, sex abuse and criminal sex act.

A parent, Keisha Davis, says she believes the incident happened in the boys bathroom during fourth-period classes.

The Department of Education says it is investigating the incident.