Police are investigating reports of fighting between Cobblers fans and Fleetwood Town supporters near Sixfields on Saturday.
Officers were called to reports of a “confrontation” outside The Sixfields Tavern at around 5.15pm, after Saturday’s match, which ended with a 3-1 victory for Northampton Town.
Police have said they remain unclear exactly what happened during the altercation, having received different accounts of the alleged fight.
They have today appealed for witnesses to come forward.
A police spokesman said: “We are appealing for information about an incident following Northampton Town’s home football match with Fleetwood Town on Saturday afternoon.
“At around 5.15pm, in the vicinity of the Bella Italia restaurant and the Sixfields Tavern public house, supporters from Northampton and Fleetwood were involved in a confrontation.”
Witnesses to this incident, or anyone with information, can call Northamptonshire Police on 101, alternatively, information can be given anonymously to Crimestoppers on 0800 555 111.