A 27-year-old was assaulted by a gang of men.
The man was hurt during a fight involving a group of people outside a Southern Co-operative store in Sultan Road, Buckland, Portsmouth.
The victim suffered head and serious facial injuries, which were not life-threatening, in the attack, which took place between 11.15pm and 11.45pm on Saturday.
Investigating officer Detective Constable Jackie Foley said: ‘Initial enquiries suggest a number of people stopped to assist the victim so we are appealing for them and any other witnesses to come forward.
‘We believe all those involved in the fight itself knew each other and that this was not a random attack.’
Witnesses, or anyone with information, are asked to contact CID at Fratton Police Station by phoning 101.