Two men were assaulted on the dance floor of a Northbridge night club on the weekend.
At 12.45am on Saturday night the men were at The Shed on Aberdeen Street when they were they were involved in an altercation with an unknown man.
During the confrontation one man was knocked unconscious while another was punched in the face, snapping off a front tooth.
He will require extensive dental work to have a false tooth fitted.
The offender then ran from the nightclub.
Police would like to speak to three men they believe can assist them with their inquiries.
Anyone who was in nightclub at the time of the incident who saw the fight call Crime Stoppers on 1800 333 000.