York Regional Police say a man who impersonated a police officer then robbed and sexually assaulted a woman in Vaughan in early June may have committed similar crimes in two Alberta cities.

Police released photos of the suspect on Monday. 

"We definitely need to figure out who this person is," Const. Andy Pattenden said on Monday. "There could be other victims."

Pattenden said investigators are trying to determine if there are links between the sexual assault and robbery of a woman in Vaughan and robberies of women reported in Calgary in March, and Leduc, Alta., south of Edmonton, in April and again in Calgary in June. 

Impersonating a police officer is an offence, he said.

In a news release, York Regional Police said on Thursday, June 8 at about 8 p.m., a man arranged a date with a female escort, 18, at a hotel in the Interchange Way and Highway 7 in Vaughan, north of Toronto. 

When the man met the woman met in a hotel room, he told her he was a police officer and showed her a document that he claimed was a warrant for her arrest. He then said she was under arrest.

Police said the man sexually assaulted the woman, left the room with some cash, and fled in a vehicle.

Suspect 2

The suspect is described as a male, brown, 28 to 35 years of age, six feet tall, with a thin build, brown eyes and long, black wavy hair. (York Regional Police)

The suspect is described as a male, brown, 28 to 35 years of age, six feet tall, with a thin build, brown eyes and long, black wavy hair. 

"Have a good look at those photos," Pattenden said.

"He's wearing a couple of different baseball caps in the photos. One of them that is quite distinct is a Coors Light cap. In the other photo, he's wearing what looks like a Maple Leafs hat, possibly."

York Regional Police's special victims unit — human trafficking team is asking for help from the public in identifying the suspect.

Anyone with information is asked to call that team at 1-866-876-5423, ext. 6800 or email them at humantraffickingteam@yrp.ca. You can also contact Crime Stoppers anonymously at 1-800-222-TIPS, leave an anonymous tip online at www.1800222tips.com, or text your tip to CRIMES (274637) starting with the word YORK. 

Suspect 3

York Regional Police say they want to find this man. 'There could be other victims,' says Const. Andy Pattenden. (York Regional Police)