Detectives investigating a sexual assault at Bond Street Underground station have released these images in connection.
At around 5pm on Monday 15 June, a man sexually assaulted a woman as she walked through the tunnel from the Elizabeth Line to the Central Line platform.
Detectives would like to speak to the man pictured, as they believe he may have information that could assist their ongoing investigation.
Anyone who recognises him is asked to text BTP on 61016 or call 0800 40 50 40, quoting reference 484 of 15 June.
Information can be given anonymously to Crimestoppers on 0800 555 111.