These men are wanted for a number of reasons, including murder, firearms and drug offences and much more.
Police have warned the public to not approach the criminals if seen, and have urged readers to alert them with any information.
Detectives from the Met’s Central Specialist Crime unit have released mugshots and described the offences of the following individuals.
Korra, 43, is subject to a warrant for extradition to Albania for a murder that took place in his former homeland in 2013.
He was sentenced to 22 years imprisonment in his absence.
Enquiries link him to east London and it is likely he is using a false identity.
Cholomek, 34, is wanted on a European Arrest Warrant issued in Poland for serious assaults committed in his former homeland during 2016 and 2017.
Enquiries link him to Croydon and south London.
He is described as, bald with tattoos on his face, predominantly down the left hand side and on both sides of his neck.
Januskevicius, 43, is wanted on a European Arrest Warrant issued in Lithuania for drugs supply and firearm offences committed in his former homeland between 2016 and 2018.
He has recent links to south east London and Surrey.
Kasciukas, 39, is wanted on a European Arrest Warrant issued in Lithuania for a murder committed in his former homeland in October 2018.
He is described as having two fingers missing from his left hand.
He has links to east London, more specifically Dagenham, Ilford and Forest Gate.
Halilaj, 39, is subject to a warrant for extradition to Australia for drugs offences.
He is an Albanian national. He has known links to the Northampton area.
Detective Sergeant Peter Rance, of Met’s Extradition and International Unit, said: “These men must not be approached.
“Anyone who recognises any of these men or has information about their whereabouts should call police.
“If you know the person and know where they are now call 999.
“If you think you might know any of them then please call the Extradition Unit on 020 7230 3191.
“It is extremely important not to call 999 unless you know for certain who the person is and where they are at this time.”
To remain anonymous contact Crimestoppers on 0800 555 111.