Police are asking for the public's help after a sexual assault on the Bruce Trail near the Kenilworth Access.

Police say a man approached a woman who was walking alone on the trail around 10:30 a.m. Friday and forced her into a nearby area where he tried to sexually assault her.

She escaped, ran away and reported the attack to police. Police say they have since increased patrols in the area.

The assailant is described as a white man in his early 20s. He's about five-foot-seven to five-foot-eight. He was wearing a navy blue hoodie and bandana over his face.

Police warn people not to approach anyone matching the description, but instead call 911.

Anyone with information about this incident is asked to contact Det. Carolyne Rashford 905-540-5543 or Crime Stoppers at 1-800-222-TIPS to provide tips anonymously.