Ten people have been arrested after an unauthorised music event held in a disused warehouse in Kettering and attended by up to 1,000 people.
Northamptonshire Police were called in during the early hours of New Year's Day after complaints from neighbours and found 700 to 1,000 people in an empty warehouse on the Telford Way Industrial Estate.
Police decided to let the event continue because of the large number of people attending.
When it came to an end at around lunchtime on New Year's Day, police made ten arrests for conspiracy to commit a public nuisance.
Police also seized five vehicles, sound equipment and other evidence.