Tulsa sex crimes detectives are investigating an allegation that a 16-year-old girl was raped at Hale High School Thursday.

She told officers she was walking to class when someone came up behind her, dragged her into an empty classroom and sexually assaulted her on one of the tables. She told a teacher who called Tulsa Police.

The girl told detectives she didn't believe she knew the person and could only give a vague description because she was grabbed from behind.