More on KentOnline
Travellers have moved into the car park near Maidstone Leisure Centre for the third time in six months.
Police officers were called just before 1pm on Wednesday to reports of a "traveller incursion" in Willow Way.
A spokesman said: "The matter is being dealt with by the landowner, as is the normal process for these matters."
Caravans and camper vans were also spotted on the site last September and then again in November.