• Image issued after assault at Green Park station on Tuesday, 8 March.
• 36-year-old man was punched by stranger.
• Detectives issue image of man they want to speak to about the incident.
The victim, a 36-year-old man, was waiting for a train on the northbound Jubilee line platform shortly before 9pm.Another man sat next to him and assaulted the victim by punching him in the thigh, leaving him with a puncture wound to his leg.
The victim attempted to challenge the man, but his attacker boarded a train.
Detective Constable Denis Mahoney said: “Fortunately the victim was not seriously injured, but this was an unnecessary attack.
“We are committed to ensuring the Tube network remains a safe place for everyone and have a zero tolerance approach to all forms of violence.
“Having studied CCTV from the station of the alleged assault, I am today issuing an image of a man who I think has information about what happened. I would like him to come forward and speak to us.
“If you recognise him, please contact BTP.”
Anyone with information is asked to contact British Transport Police on 0800 40 50 40, or text 61016, quoting reference 284 of 18/4/16. Information can also be passed anonymously to the independent charity Crimestoppers on 0800 555 111.