NORMAN, Okla. (AP) — Allegations by three girls at an Oklahoma high school who say they were raped by the same male student have led to a police investigation and protests by students who say school officials have mishandled the case and subsequent bullying.

Hundreds of students, along with parents and supporters, filled the street Monday in front of Norman High School to protest what they say was bullying.

Cleveland County District Attorney Greg Mashburn confirmed Norman police are investigating alleged assaults of three girls. He said two reportedly happened off campus and the third happened at the school.

Norman Public Schools spokeswoman Shelly Hickman says administrators were made aware in September of a video of an alleged sexual assault and suspended the suspect. She denied the district allowed any students to be bullied.