Female teacher from Vaughan charged with sexual assault

A 28-year-old high school supply teacher in Vaughan is facing charges in a sexual assault investigation.

Marianna Riossi was a teacher with the York Region Catholic School Board, and has been accused of sexually assaulting a male student.

York Regional Police say the alleged incidents happened between October and December of this year.

Rossi is facing three counts each of sexual assault and sexual exploitation.

Police want to ensure that there are no further victims, so they are asking anyone with information to come forward.

Rossi will be in court in Newmarket on March 6th.