Police investigating a report of rape are appealing for further witnesses to come forward.
The incident was reported to the police on 20 September, after the victim had been out with friends in Brighton on a night out.
The victim, a woman in her late teens who cannot be identified for legal reasons, is receiving support from specially-trained officers.
Officers are keen to trace witnesses who may have seen or spoken to the victim in Queen’s Road in central Brighton late on Friday, 19 September, into the early hours of 20 September.
In particular, they are keen to speak with an e-scooter rider and a woman who may have checked on the welfare of the victim, as witnesses.
Detective Inspector Matt Stevens said: “This is a fast-moving and complex investigation, and we are keen to trace people who may have interacted with the victim while she was in Brighton.
“In particular, we believe some members of the public stopped to check on her welfare in the centre of Brighton, and we are keen to speak with them.
“We urge anyone with information to come forward.”
Information can be reported to Sussex Police online or by calling 101 and quoting serial 386 of 20/09.
If you or anyone you know has been affected by the individuals highlighted on this website, please report them to the Police on 101 (999 in an emergency) or visit their online resources for further details on reporting a crime. You can also report to Crimestoppers if you wish to remain completely anonymous. There is help available on our support links page.