Police trying to close down an illegal rave at Aldeby near Beccles, which is thought to have started just after midnight (Sunday 18 August).
Officers attended the site near Stanley Hills and efforts were made to contain the area.
Police blocked entrances to the site to prevent further people attending and a notice to leave direction was issued shortly after 3.30am.
About 200 people are thought to be at the event with around 100 vehicles and officers will look to close the event down in a safe and controlled manner.
Police said they'd received several complaints from local people about the noise.