A man in his thirties is facing two charges after police say he sexually assaulted a woman at a bus shelter in the city's downtown.

The Winnipeg Police Service says in a release that officers were called just before 6 p.m. on Friday to Garry St. and Portage Ave.

When officers arrived they took a 38-year-old man into custody. The WPS says they believe that the female victim, in her 50s, had been sitting in the shelter when the suspect entered and made a sexual comment towards her.

He then exposed himself and began to assault her—at which time a passerby contacted police. 

Police say that the victim and suspect did not know each other. She did not require transport to a hospital for her injuries.

The man is facing charges of sexual assault as well as assault.

He was released on an Appearance Notice as mandated by the Criminal Code, the WPS says.