Toronto Police have released security images of a man wanted in connection with a downtown sex assault.

Officers responded to a call for a sexual assault in the area of Cumberland and Bay Sts. at approximately 1:23 p.m. last Saturday.

A 23-year-old woman was walking in Toronto’s Yorkville neighbourhood when a man approached her from behind and sexually assaulted her, police said in a news release.

The woman was then able to break free and run to get help, police said.

The man is described as five-foot-six to five-foot-nine with a skinny build and thin beard. He was last seen wearing a black baseball cap, light-grey hoodie with hood over his hat and baggy pants.

Anyone with information is asked to contact police at 416-808-7474, Crime Stoppers anonymously at 416-222-TIPS (8477), or online at www.222tips.com.