A fleet of around 30 travellers were escorted by police off of land near Northampton Saint's training ground last night (Thursday, April 15) at around 6pm.
The travellers were parked in a long single-file line down Ross Road and descended into a nearby car park on the same street.
Around seven police cars were there to deal with the incident, which lasted around 45 minutes to an hour.
Northamptonshire Police said today (Friday) the travellers have now left the county. It is not known where they are or if they will be back.
A police spokeswoman said: "We worked with the staff at the Saints to engage with this group who agreed to leave the car park without issue."
A West Northamptonshire Council council spokesperson said the travellers have left the county and have no links to the fun fair in Sixfields.
An illegal encampment was recently parked up in Banbury Lane, between Rothersthorpe and Hunsbury Meadows, until they eventually moved on a week after they were supposed to.
And back in September 2020, an unauthorised travellers site pitched up at a different site in Banbury Lane, which led to residents in Pineham Locks saying they feel "afraid" of walking past the encampment.
One resident described last year's encampment as "like a small town" after more than 20 caravans were at the site.
The Police, Crime, Sentencing and Courts Bill is making its way through parliament which would hand police more powers to deal with illegal encampments.
If the law is passed, police will be permitted to seize vehicles and arrest any offenders, who will be liable for a fine of up to £2,500, three months in prison, or both.
The Government has said that the measures will "target harmful encampments which reflect badly on the wider nomadic community as a whole, the majority of whom are law-abiding".
The same bill has also received criticism about handing police more power to deal with protesters who cause a 'serious annoyance'.