Two people going to the event between Alresford and Wivenhoe were arrested on suspicion of drink-driving.

Officers raided the party early on Sunday morning after residents complained of the noise the 80 people were making.

Chief Insp Iain Logan said: "Our policy is to act early and disrupt illegal events such as these."

He added they caused nuisance to residents and were generally held in inappropriate or dangerous venues with no consideration for those attending.

Organisers can expect arrest

"Organisers can expect to be arrested, prosecuted and have their equipment seized if they fail to comply with directions from police to close their event.

"Police stayed at the beach area until all those taking part had dispersed and the sound equipment was dismantled.

"We found items associated with drug-taking but no arrests were made although two people on their way to the event were questioned after arrest on suspicion of drink-driving."