Police have shut down an illegal rave at Aldeby near Beccles.
Up to 300 people and more than 100 vehicles were at the event near Stanley Hills which is thought to have started just after midnight on 18 August).
Sound equipment including decks and three generators have been seized by police and investigations are underway to identify organisers of the event.
Chief Inspector Nathan Clark, who led today’s operation, said: "We were made aware of this event by local residents who contacted police to complain about the noise.
"Raves, not uncommon at this time of year, can be very disruptive for local residents and landowners while the presence of hundreds of people and vehicles can also have a detrimental impact on the environment."