THREE men were arrested following a late-night fight.
Police were called to reports of several brawls outside a University of Portsmouth building, opposite Pure nightclub at 2.45am on Saturday.
Officers broke the fights up and arrested three 21-year-old men on suspicion of affray.
All three were later bailed pending further enquiries.
Police believe at least one man was hurt, but he left before they arrived.
Officers are now appealing for anyone who witnessed the incidents to come forward.
Anyone with information is asked to contact PC Sarah Thomas at Portsmouth Central police station on 101 quoting crime reference number 44110121914.
Alternatively call Crimestoppers anonymously on 0800 555111.