Detectives are investigating a report of an assault on a 27-year-old woman that took place in King Arthurs Way in Andover.
This occurred sometime between 2.15am and 3.00 am on Saturday, July 25.
Officers have been working closely with the victim to provide support and establish more details about the incident.
Initial enquiries suggest that there is no wider risk to the public.
A 39-year-old man has been arrested in connection with this investigation and is currently helping police with their enquiries.
House-to-house enquiries have been conducted in the area, but police are very keen to speak to anyone who witnessed this incident. Anyone who has information which can help the investigation is urged to call 101 and ask for the Northern Investigation Team.
Alternatively, information can be left anonymously with Crimestoppers on 0800 555 111.