CID have confirmed that the incident took place at around 4am today (16.02.16) in the town’s Valley Gardens.
The teenager was grabbed by three men. She was then taken to a wooded area near Harlow Moor Road where she was sexually assaulted.
Police are currently at the scene carrying out extensive investigations and offering the victim support.
Detective Inspector Mark Pearson said:
The investigation is still in its early stages and I’d appeal to anyone who might know anything, or saw anything suspicious in the area, to contact the police immediately.
Enquiries are ongoing and we are doing everything we can to find these men and while the victim is being supported by specially-trained officers.
Anyone with information is urged to contact North Yorkshire Police on 101 and quote incident number NYP16022016-213.
You can also contact Crimestoppers anonymously on 0800 555 111.