A woman was followed off a train and assaulted by a stranger in north-west London.
The victim was on a train travelling between Finchley Road and Kilburn around 9.25pm on June 22, when a man in her carriage began acting aggressively towards her.
When the woman alighted at Kilburn Undergroun Station, the man followed her onto the platform and assaulted her, before running away.
British Transport Police on Tuesday released an image of a man officers believe “may have information that could help their investigation”.