British Transport Police is investigating a reported sexual assault at Green Park Tube station as the victim walked from the Victoria line towards the Piccadilly line.

Police investigating a sexual assault at a central London Tube station have released a CCTV image of a man they want to speak to.

The incident happened at Green Park at just before midnight on Saturday September 30.

British Transport Police (BTP) says the victim was walking from the Victoria Line towards the Piccadilly Line when a man approached them, asking for directions.

Detectives say the man sexually assaulted the victim and bit their chest twice.

British Transport Police want to speak to this person following a reported sexual assault at Green Park Underground station. (Photo by BTP) | BTP

Detectives would like to speak to the man in the CCTV image, who BTP says "may have information that could help their investigation".

Anyone who recognises him is asked to contact BTP by texting 61016 or by calling 0800 40 50 40 quoting reference number 121 of 01/10/23.

Alternatively you can call Crimestoppers anonymously on 0800 555 111.

TfL Green Park Tube station sexual assault investigation: Man 'bit victim's chest twice', police say