A 21 year-old man has presented himself to ambulance staff on Edinburgh Road in Portsmouth with a stab wound to his leg.
At around 12.23am on Saturday 13th July a man told ambulance staff he'd been stabbed in the leg when he was near Debenhams in Commercial Road.
Officers say it's believed the man had been stood outside the Park Tavern in Edinburgh Road when he got into an altercation with two men who got out of a taxi on the other side of the road.
Police say they'd like to hear from anyone who was in the Commercial/Edinburgh road areas around the time of the incident and saw anything suspicious.
Anyone with information is asked to call 101.