Detectives in Brent are looking for the man in this image in connection with a stabbing in Wembley.
Officers were called to High Road, in Wembley, in the early hours of February 14 and found two men, aged 29 and 31, with stab wound injuries.
First Aid was administered by police and the victims were taken to north and central London hospitals for treatment. They have both since been discharged.
Police say an "altercation" occurred in London Road, between 4am and 4.45am, involving the two victims and a group of men, as people were exiting a nearby Romanian nightclub. The victims continued walking until police located them in the High Road.
Four men - aged 24, 30, 38 and 32 - have been arrested by police and bailed but investigators want to hear from witnesses.
If you can help call Brent Police on 101, or Crimestoppers on 0800 555 111.
