A Halifax man is accused of sexually assaulting a woman, and police say it's possible there are more victims.

Halifax Regional Police said they received a complaint from an 18-year-old woman on Nov. 19.

She told police that the night before, she met a man socially and the two went to a downtown establishment together. She said she woke up the next day and went to hospital believing she’d been sexually assaulted.

The Integrated Major Crime Unit investigated.

"From the evidence gathered in this investigation, officers believe that there may be other women who were victimized in similar ways," police said in a news release Friday.

A 31-year-old man was arrested Friday afternoon after he turned himself in. 

Craig Joseph Marchand of Halifax is facing charges of sexual assault, administering a noxious substance and voyeurism.

He has been released to appear in Halifax provincial court at a later date.

Anyone with information about this case or similar incidents is urged to call Halifax police at 902-490-5016 or Crime Stoppers toll-free at 1-800-222-TIPS (8477).