Detectives have launched an appeal after a rail worker was left with severe injuries following a violent assault in northwest London.
The British Transport Police (BTP) said they were called at 12.15am on Sunday to reports that a member of staff at Harrow on the Hill station had been punched.
The victim was knocked unconscious and suffered a fractured skull which led to bleeding on the brain. The victim remains in hospital for further assessment.
The BTP has since released a CCTV image of a man they believe may have information relating to the “unprovoked” assault.
Detective sergeant Mike Blakeburn said: “This was an appalling and unprovoked act of violence on a member of staff simply doing their job, and we are doing all we can to trace the person responsible.
“We know a number of people witnessed the incident at the time and I would urge them to come forward to assist our investigation.”
