Police are appealing for information after a sexual assault in Cheltenham in the early hours of Easter Monday.
It happened near the taxi rank in The Promenade between 4am and 4.40am.
The victim, a 24-year-old woman, was approached by a man she had met briefly earlier in the evening.
He then attacked her further along the street.
He is described as white, in his late 20s, 5ft 8ins tall, of medium build, with short mousy brown hair. It is believed he was wearing a white shirt and a brown jacket.
Detective Sergeant Hannah Mackie said: "We need to speak to people who were in the area who may have seen the man with the woman.
"We believe he was at Moomoo and Fever nightclubs before moving to the taxi rank so if you think you may have seen, or been approached by someone acting strangely or aggressively please call us straight away.
"We also believe the man tried to get into a number of taxis but was refused before he attacked the victim. Were you one of these drivers? If so we need to talk to you.
"We're offering the victim all the support we can and are carrying out a number of inquiries, including a review of CCTV in the area, to trace the offender."
Anyone with information is urged to call 101, quoting incident 67 of April 1.
Alternatively information can be given anonymously on 0800 555 111, or via www.crimestoppers-uk.org. In some cases Crimestoppers offer rewards of up to £1000 where information leads to a conviction.
