Police are hunting a well-groomed man who was caught touching himself inappropriately – at midday on the Tube.
The victim was travelling on a Northern Line carriage when she noticed a man appeared to be pleasuring himself while staring at her.
The incident happened on a northbound train between London Bridge and Kings Cross on October 30.
Detectives from British Transport Police’s Sexual Offences Unit have released an image of someone they believe may help with the investigation.
He had light brown hair, was wearing a black shirt, black jeans and has a distinctive tattoo on his arm.
A spokesman for BTP said: “Officers believe the man shown in this image may have information which could help them investigate.”
By Grainne Cuffe