Toronto police have released a security camera image of a man wanted in connection with a sexual assault on a TTC bus in North York.

Police say the incident occurred on April 2 at around 3 p.m. after a man boarded a bus at Yorkwoods Gate and Driftwood Avenue.

According to investigators, the suspect sexually assaulted a 20-year-old woman on the bus before exiting the vehicle at Downsview Station.

He is described as about 60 to 65 years old, 180 pounds and is approximately five-foot-six to five-foot-eight. The suspect reportedly has a medium build and a freckled face. Police say he was last seen wearing a blue, puffy jacket, a dark-coloured hoodie, black pants, black boots and a black baseball cap with a red brim and a Canada flag on it.

Investigators are asking anyone with information to call police at 416-808-3100 or Crime Stoppers anonymously at 416-222-TIPS (8477).