Detectives have released an image of a man they believe may have information that could help their investigation into a sexual assault on the London Underground.
The incident occurred at approximately 5:30pm on Thursday, August 17th, last year, aboard a Piccadilly line train as it arrived at Holborn station.
A 19-year-old woman was travelling on the Piccadilly line when a man who had been sitting next to her stood up and deliberately fell onto her when the tube reached Holborn station.
He then sexually assaulted her before standing up and smiling at her.
Anyone who recognises him is asked to contact British Transport Police by texting 61016 or by calling 0800 40 50 40 quoting reference number 2300099136.
Those who wish to remain anonymous can call Crimestoppers on 0800 555 111.
Holborn station is served by the Piccadilly and Central lines which serve a number of stations across Hillingdon borough.
