Police want to trace three brothers with links to Sittingbourne, Bexley and Greenwich over a serious assault in Thamesmead.
It follows a fight in Disraeli Court on March 3 when two men were assaulted.
The Saunders brothers - Jimmy, 27, 22-year-old Johnny and Bernie, 19, - are from the Sittingbourne area in Kent, but also have links to Bexley and Greenwich areas, police say.
Detective Constable James Robinson from Greenwich CID said: "We have carried out extensive enquiries to locate these men, but have been unable to track them down.
"I would urge anyone who has information of their whereabouts to get in touch with us. This was a violent assault and we are keen to hear from anyone who might know where these men are."
Anyone with information should call Detective Constable James Robinson at Greenwich CID on 020 8284 9543 or Crimestoppers on 0800 555 111.