Police are hunting for three men after an 18-year-old was viciously stabbed on a bus in Ealing.
Detectives have released CCTV images of the three men they would like to speak to in connection with the stabbing, which took place on a N207 bus on December 29 last year.
Officers were on patrol in The Broadway, Ealing, at about 1.35am when they were flagged down by the bus driver because an 18-year-old passenger had been stabbed.
Police administered first aid until the arrival of the London Ambulance Service.
The victim was taken to a central London hospital where his injuries were not deemed to be life-threatening or life-changing.
Police enquiries established that the victim was approached by three males, aged in their late teens to early 20s, on the upper deck of the bus before being stabbed.
The suspects got off the bus by the Nationwide building society and were captured on CCTV walking in the direction of West Ealing.
Anyone who recognises the men, or has information about the incident, is asked to call police on 101 or Tweet @ MetCC quoting CAD 447/29DEC.