Once again Toronto police are investigating after a sexual assault was reported at York University.

The incident happened over the weekend in residence.  Police say the woman is in her early 20's.

Cops say she met the suspect in residence early Saturday morning.  That's when the alleged sexual assault took place.

Police haven't arrested a suspect in the case, saying the woman didn't know her attacker very well. 

It's the 7th sex assault allegation at York University since the summer.