A teenager was raped in the doorway of a shopping centre after two men tried to force her to drink vodka.
The 17-year-old victim and her friend were approached by two men while shopping in Westfield, west London.
After spending some time together, police say the group made their way to central London before returning to Shepherd's Bush Green by bus.
The men - who called themselves 'Mohamed Saif' and 'Ahmed' - tried to make the women drink from a bottle of vodka, but they refused.
The women were split up by the men and 'Ahmed' forced the 17-year-old victim towards an entrance to West 12 Shopping Centre where he raped her at around 3.45am the following morning on October 28 last year.
The two women quickly left the area and made their way home, where they called police. It is not known if the men gave their real names to the two girls.
Now detectives have released a CCTV image of a man they would like to speak to in connection with the attack.
The suspect is described as 5ft 9ins, of medium build with black spiky hair and he spoke in broken English. He was wearing blue jeans, a dark bomber jacket and light trainers.
Det Con Rebecca Thomas, of the Met's Sexual Offences, Exploitation and Child Abuse Command, said: