A man was punched in the face in the early hours of a Sunday morning last month in an attack outside a Kettering fast-food restaurant.
The victim, 22, was hit at about 4.10am on Sunday, August 24, outside the KFC in Silver Street in the town centre.
Shortly afterwards, a further altercation took place in nearby Tordoff Place.
Police have only today released details about the incident.
Witnesses, or anyone with information, are asked to call Northamptonshire Police on 101. Alternatively, they can call Crimestoppers on 0800 555111.