A 12-year-old girl told police she was sexually assaulted while on board a TTC bus at Dundas West Station earlier this week.

According to police, the girl boarded the Symington Avenue 168 bus at Dundas West Station on Monday at around 9 a.m. when she noticed a man following her to the back of the bus.

She told police that the man sat next to her and that she was sexually assaulted.

Once the bus arrived at Antler Street, the girl got off the bus and later reported the incident to police.

In an effort to identify a suspect, police have released several photographs.

The images show a man with a black sling on his right arm. He was last seen wearing a distinctive black baseball hat with a red “15” emblem on the front center and a white border trim.

Anyone with information about the investigation is being asked to call police at 416-808-1100 or Crime Stoppers anonymously at 416-222-TIPS (8477).