A teenager needed surgery after being attacked by a group of men in Aylesbury.
The 19-year-old victim was left with serious face and hand injuries and was taken to Stoke Mandeville Hospital for treatment.
The attack happened in Penn Road, near the Railway Club, when between two and four men assault the teen.
It is believed the dispute may have started in the Railway Club, which is located in the Grand Central flats development.
The incident happened at about 11.45pm on Friday (January 24), police said today.
The attackers were described as Asian but there are no further details at this time.
Anyone with information is asked to contact investigating officer Det Sgt Kerry Bradfield by calling 101.
Alternatively you can call Crimestoppers anonymously on 0800 555 111.