Police wish to talk to three men who were in Steine Street, Brighton, when a woman was raped on Saturday morning.
CCTV shows three men, all walking separately, enter the twitten leading towards the seafront moments after a man had led a 27-year-old woman there and raped her.
Detective Sergeant Emma Vickers said: “We believe the men may have noticed the two and we are asking them or anyone who was in or near the street between 8.45am and 9.15am on Saturday to call us on 101, email 101@sussex.pnn.police.uk quoting serial 407 of 25/10 or call the independent charity Crimestoppers anonymously on 0800 555 111.”
A 23-year-old man has been arrested for rape and has been bailed until 1 November for further enquiries.