The Metropolitan Police are carrying out an operation to trace wanted foreign nationals in London today.
The Extradition Unit is running Operation Sunfire in an attempt to arrest the murderers, robbers, drug traffickers and other criminals.
One of those being sought it Lukasz Wyrzykiewicz, 30, who it is thought might be in Harrow or Northolt.
He is wanted in Poland for causing grievous bodily harm and for affray relating to the stabbing of two brothers in a club in 2009.
After they were stabbed, both were pushed down a flight of stairs and suffered severe injuries.
Detective Sergeant Peter Rance, leading Operation Sunfire 3 for the Extradition Unit said: "Today I'm asking the public, do you recognise these faces? Maybe you know where these people live, work or socialise?
"They are wanted to face justice for a multitude of crimes in other countries and it is in the UK's interests to help find them.
“If you have any information about these people, please call Crimestoppers so we can arrest them. If you see them call 999 and do not approach them."