Ottawa police have released new photos in an effort to identity a man they say strangled and sexually assaulted a sex trade worker in Vanier.

Police said the sexual assault happened around 2 a.m. Feb. 19 on Montreal Road, east of the Vanier Parkway.

The suspect was driving and approached the victim, who got into his vehicle and was driven to a parking lot, according to police. The man then forcibly confined, strangled and sexually assaulted her, police said.

Police describe the suspect as white, about 200 pounds with a stocky build and a red-brown beard. He wore a wedding ring and had a tattoo on the side of one hand.

The man was driving a white car similar to a BMW, with aftermarket parts. It had child seats in the rear, tinted windows and a possibly damaged passenger side mirror.

"Even if you don't have information about the incident you may recognize this vehicle or the suspect description," Det. Monique Paquette said in a news release.

Police are also hoping to speak with any possible witnesses who were in the area at the time.

Anyone with information is asked to contact police.