Members had been trained in Nazi-style hit squads to "attack immigrants for fun".
Golden Dawn is under investigation for the murder of rapper Pavlos Fissas, who bled to death after being stabbed by a party sympathiser last week.
An extremist political group, Golden Dawn, plans to establish cells ‘wherever there are Greeks’.
Two MP’s from a neo-nazi party in Greece have been arrested in a second incident where the party’s leaders have been accused of attacks on foreigners.