Travellers have set up camp in a car park in Chesterfield.
The group moved on to the site at Queen’s Park on Wednesday night.
A spokesman for Chesterfield Borough Council said the legal process had begun to remove them - which would include issuing a direction to leave tomorrow and, if needed, a summons on Monday.
Derbyshire Constabulary has also been informed of the group’s arrival.
The car park was closed for several days in June last year after around 12 caravans and cars descended on the site.
Speaking to the Derbyshire Times at the time, a woman from the group said her family were from Norway and had come to Chesterfield ‘for a holiday’.
Other cars in the group had registrations from a host of other European countries including France, Germany and Luxembourg.