Detectives are investigating after an allegation of an attempted sexual assault in Market Street in Scarborough during the early hours of Thursday.
A 24-year-old was been arrested in connection with the incident and has been released on police bail to allow for further enquiries.
The victim, a woman aged in her 20s, is being supported by specially trained police officers.
Anyone with information about the incident should contact Scarborough CID on 101.
If you prefer to remain anonymous, Crimestoppers can be contacted anonymously on 0800 555 111.