TORONTO, Ont. – Police are asking the public for their assistance identifying a suspect after an alleged sexual assault on the TTC.

The assault happened on Thursday at approximately 4:40 p.m. on board a TTC bus travelling south on Islington Avenue.

It’s alleged the suspect, picture above, boarded the bus and followed a 22-year-old woman to the back of the bus.

After standing near the victim the suspect sexually assaulted her, and he was last seen at Islington Station.

The suspect is described as black, 30-to-40-years-old, 6’2″ tall with a large build and shaved head.

He was last spotted wearing a brown coat, beige sweater and dark pants.

Anyone with information is being asked to contact police or Crime Stoppers.