Toronto police say the attack happened in Roding Park, near Keele Street and Wilson Avenue, at 2:30 p.m. The victim was 28 years old. She was walking through the park at the time of the attack.
The suspect is described as a white male with a heavy build who is approximately 50 years old. He had a black and white beard and wore a black baseball hat, a black windbreaker, a blue shirt and black shorts.
Anyone with information is asked to contact investigators at 416-808-7474. Tips can also be passed on anonymously through Crime Stoppers (416-222-8477).