Toronto police are looking for the public's help searching for a suspect after a woman was sexually assaulted on a TTC bus on Wednesday.

Police say the incident happened at 5:25 p.m. on a northbound Dufferin bus near Bloor Street West.

The man sat down next to the woman who was sitting towards the back of the bus, according to police. Then, he allegedly placed a coat over his lap and sexually assaulted the woman.

The woman immediately confronted the man and he exited the bus from the rear doors and fled.

Police believe the suspect is in his late 50s or early 60s and has reddish-blonde thinning hair. He wears glasses and was seen wearing a blue dress shirt, blue jeans and a navy-blue blazer over his arm at the time of the alleged incident.

Anyone with information is asked to call police at 416-808-1400.