Police have released a picture of a man they would like to speak with in connection with an alleged assault that took place outside the Elysium night club, Horse Market, Northampton.
At around 4.55am on Saturday, October 8, a man who had previously been removed from the club punched another man outside the club.
Officers wish to speak to the man pictured who may have vital information.
Anyone with information can contact Northamptonshire Police on 101. Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.