Officers have released images of a man they are looking for following a sexual assault at Knightsbridge underground station.
At around 1.45am on Sunday, the 27th of April, the victim, a 23-year-old woman, got on an escalator at Knightsbridge underground station when a man sexually assaulted her.
Detectives believe the man in the images may have information that could help with their investigation.
Anyone who recognises him is asked to contact BTP by texting 61016, or by calling 0800 40 50 40 quoting reference 61 of 27 April.
Information can also be given anonymously to Crimestoppers on 0800 555 111.