Vancouver police are looking for a man alleged to have sexually assaulted a woman on her morning jog around Stanley Park on Monday.

The woman, police say, was running close to Lost Lagoon at around 8.30 a.m. PT when a man grabbed her from behind, knocked her to the ground and groped her. 

The suspect ran away after the woman fought him off. A police search of the area was unsuccessful.

The man is described as aboriginal, in his late 30s to early 40s, six feet tall and 190 lbs. He was wearing a dark baseball cap, a dark jacket and dark pants that were covered in mud.

Police are asking anyone with information, or who may know the suspect, to call the Vancouver Police Sex Crimes Unit at (604) 717-0602 or to remain anonymous, contact Crime Stoppers at 1 (800) 222 8477 or online at solvecrime.ca.