Police are working with their Greek counterparts following reports one of Australia's most wanted men has been arrested after three decades on the run.
James Dalamangas was taken into custody on Sunday in the Peloponnesian town of Aigio, according to local media reports.
The 55-year-old had been living under a pseudonym in Greece since a warrant was issued for his arrest over the death of father-of-two George Giannopolous, who was fatally stabbed on Anzac Day in 1999 after intervening in a fight at a suburban Sydney night club.
NSW Police have said they are "encouraged" by the reports and are working with Hellenic police.
The underworld figure has evaded Australian authorities for decades.
Police had tried to extradite him in 2003 and attempts to prosecute him by their Greek counterparts were suspended in 2007.
