Police are appealing for information after a woman was allegedly sexually assaulted at a busy London station.
The incident took place at Bank Underground station just before 4pm on Saturday, June 14.
A man approached a woman at the station and engaged her in conversation, British Transport Police said.
He then proceeded to follow her through the station before sexually assaulting her as she went up the stairs.
Officers have now released CCTV images of a man they believe may have information that could help with their investigation.
In the images, the man is seen to be wearing a white t-shirt and a grey and black track jacket with a black cap and shorts.
Anyone who recognises the man in the images is asked to contact BTP by texting 61016 or by calling 0800 40 50 40, quoting reference 460 of 14 June.
Alternatively, you can contact Crimestoppers anonymously on 0800 555 111.
