Travellers have set up on derelict land next to Oswaldtwistle Civic Arts Centre.
Four caravans and three cars arrived on the site off Union Road on Friday, April 24.
A group of travellers were ordered to leave Baxenden last week.
Hyndburn council issued legal proceedings against the travellers at Baxenden Recreation Ground after they failed to comply with a council order to leave.
The group left the playing field on the morning of April 24 - a week after arriving.