Hampshire police are appealing for witnesses after a man was assaulted in Wonderland nightclub, in Basingstoke.
Detective Constable Andy Panter said: "This was a serious assault which has resulted in the victim needing surgery to his jaw."
Anyone with any information is asked to contact Det Con Panter at Basingstoke CID on 101.
More top news
Philippa has the Bank Holiday weather for the east
Philippa has the Bank Holiday weather for the west
Philippa has the latest weather update for the east