London police are asking the public for help in identifying a suspect in connection with a second sexual assault that occurred over the weekend.

Police say a woman was approached at around 3 a.m. on Sunday by a unknown man who touched her inappropriately. The incident occurred as she and a friend were walking northbound on Richmond Street near Piccadilly.

A photo of the suspect has been released. That same photo was posted on Jack's Facebook page, a nightclub on Richmond Street, the night before the alleged incident.

Police describe the suspect as between 5'7" and 5'10", with an average build, wearing a black t-shirt, orange turban and camouflage pants.

Three active assault investigations

It was the third sexual assault in London less than a week.

Police say another woman was assaulted in McMahen Park in Old North London at around 1:30 a.m. Sunday. She was approached from behind by an unknown man and suffered minor injuries in the incident. He is described as a Caucasian, wearing a dark-coloured long-sleeved shirt.

The search also continues for a third suspect after a woman reported she was sexually assaulted in a parking lot early on the morning of September 11. The victim said the attack occurred after she flagged down what she thought was an un-marked taxi on Richmond Street near Western Road.

Investigators said the driver became upset after the woman was unable to pay for the ride. It's alleged he then drove her to the area of Dundas and Maitland Streets, where the assault took place.

Anyone with information about any of these active police investigations is asked to call London Police at 519-661-5670 or Crime Stoppers at 1-800-222-8477. Information can also be submitted anonymously online at www.londoncrimestoppers.com.