A pensioner was left requiring surgery after he was pushed to the ground by a cyclist, who he made remarks against as he rode without lights.

Scotland Yard said the 70-year-old man was attacked after he was almost struck by the cyclist as he left a pub in Mabledon Place near London's King's Cross station.

Police said the victim, who had spent the afternoon watching rugby, made a "passing comment" to the cyclist, who was riding without lights on.

Detective Constable Rob Griffiths said the cyclist returned and pushed the man to the pavement in an "unnecessary and violent" assault.

The victim suffered a fractured elbow in the incident, which happened at about 5pm on November 10 last year.

Detectives today released an e-fit image of a man they want to speak to.

The suspect is described as white, approximately 6ft and of medium build, with short hair and stubble.

Dc Griffiths said: "This was an unnecessary and violent incident which left the victim with serious injuries, requiring surgery and permanent plates to be fitted in his arm.

"Despite extensive inquiries, we have been unable to identify the suspect. We are now appealing for the public to help.

"Do you recognise the man in the e-fit? Or were you in the area at the time of the assault? Please call us."