Toronto police want residents in the city's west end to be vigilant, especially women if they're walking alone.
A 66-year old woman was allegedly sexually assaulted by a man who approached her on the Humber River Trail, near Scarlett Road and Chapman.
This happened on Wednesday around 2:15 in the afternoon.
The suspect is described as black, between 25 and 35 years old, about 5'10", and 180 pounds.
He was wearing a green t-shirt, dark coloured baseball cap and dark coloured pants.
You're asked to call police at 416 808-7474 if you have any information.