Detectives investigating the sexual assault of a woman on a Victoria Line train to Finsbury Park have released this image in connection.
Just after 11am on Sunday 21 June, a woman boarded the train at Seven Sisters Underground station.
A man, who boarded at the same station, then sexually assaulted her twice.
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 262 of 21 June.
Information can be given anonymously to Crimestoppers on 0800 555 111.
