Officials with a university in southwestern Ontario say they have increased security on campus and in student residences following reports of sexual violence.

Western University in London, Ont., has not provided details of the alleged incidents, but said it is "investigating reports from this weekend."

A statement from Chris Alleyne, associate vice-president of housing and ancillary services, notes that the school will not tolerate sexual violence.

Alleyne says that while an investigation is underway, those facing complaints are "sanctioned, which can include removal from campus."

He says the school has not received any formal complaints from alleged victims.

A spokeswoman for the London Police Service says officers have not been notified of the allegations, so they are not currently investigating.

Last week was Orientation Week at the university.