Detectives have released an image of a man wanted following an attack outside a pub.
Police were called to High Road, Ilford at 0515hrs on Friday, 23 February following reports of a fight outside General Havelock Pub.
A 27-year-old man was found suffering from serious head injuries.
He was taken to an east London hospital where he remained for treatment for some time. He has now been discharged, but has life changing injuries, with a permanent scar on his head and ongoing medical treatment for memory loss.
Enquiries established that a fight took place following an altercation between two groups of men outside the pub.
The victim was trying to stop the fight escalating when he was struck to the head and knocked unconscious.
Detectives are keen to trace the man whose image they have released today as part of their investigation.
Anyone with information on his whereabouts is requested to call police on 101 quoting CRIS 4403988/19 or Crimestoppers anonymously via 0800 555 111.