CCTV has been released after a woman was raped at Basildon's Festival Leisure Park.
Detectives investigating the rape in Basildon are trying to trace key witnesses.
A 26-year-old woman made the allegation shortly after 4.30am on New Year’s Day in Liquid nightclub.
A 26-year-old man from Barking in east London was arrested at his home address on Sunday, January 5 and is currently on police bail until Thursday, February 20 pending further enquiries.
As part of these enquiries, detectives have identified four women and one man whom they believe can assist and help ascertain the sequence of events during the early hours of New Year’s Day in the nightclub. It is believed they live in either Essex or east London.
Anyone who recognises themselves in the images or those who do know the identities of those are urged to contact detectives at Colchester’s Major Investigation Team on 101, email them on SCDappeals@essex.pnn.police.ukor call Crimestoppers anonymously on 0800 555111.