British Transport Police are appealing for help identifying a man after a woman was subjected to a sexual incident on board a train out of London.
At around 10pm on Sunday 1 March, the victim looked up from her phone to find a man exposing himself and masturbating while staring at her. The man left the train at Slade Green station in south-east London.
Detectives have released an image of a man they believe may have information that could assist their investigation and are urging anyone who recognises him to get in touch.
Anyone with information can contact British Transport Police by texting 61016 or calling 0800 40 50 40, quoting reference 46 of 2 March. Information can also be passed anonymously to Crimestoppers on 0800 555 111.
