A sexual harassment probe is under way after a man “followed and pretended to fall asleep on” a woman on a Tube train.

The victim claims the man followed her onto the Victoria line and sat down next to her on Friday evening (April 5).

She said that the man then pretended to fall asleep on her shoulder “multiple times”, before leaving the train at Blackhorse Road after the victim confronted him.

British Transport Police (BTP) say the incident, which took place over a 25-minute period from 7pm, has been reported to them.

A spokesperson for the force added that an investigation is under way, and that it takes “all reports of this kind of behaviour very seriously”.

The woman - who did not say where the man got on the train - said that when the man alighted at Blackhorse Road, he continued to stare at her and mouth for her to join him.

She thanked another woman who stepped in to help.

The victim said: “I am beyond grateful to the amazing woman who supported me; not only did she alert me to what he was doing in case I was leaving at that stop, but she stayed with me until I left.

“She told me she was ready to support me further if needed.”

She added that it was one of the few times she had felt “pure intimidation”, and said it can take just one experience to "shatter" any sense of security.

Advising other women who might encounter the same scenario, she said: “The man was also staring straight at me while I was sat next to him, and I was texting someone about the event I was heading to, so I stopped to ensure he couldn’t see the event details which were included in the text.

“Always keep an eye out to ensure no one peers at your phone.”

Police have urged anyone with information about the incident to contact by texting 61016 or calling 0800 40 50 40, quoting reference 146 of 07/04/24.