A man approached a woman from behind as she shopped inside Waterloo train station and sexually assaulted her.
Police on Wednesday released CCTV images of a man they want to speak to over the sex attack, which happened on December 21 last year at around 2.45pm.
Officers said the man approached the victim from behind as she was in the Sidings shopping centre underneath platforms 20 to 24 and carried out the sex attack.
In a statement, the British Transport Police (BTP) said: “Officers believe the man in the CCTV images may have information that could help their investigation.”
Anyone who recognises him or has further information is asked to contact BTP by texting 61016 or by calling 0800 40 50 40, quoting reference 505 of 05/01/24.
Alternatively, call Crimestoppers anonymously on 0800 555 111.