Police raided five locations in Mandra near Athens and found military-grade explosives, dynamite, detonators, firearms, and bulletproof vests.
Greece’s new Organized Crime Directorate will be handling corruption, illegal trade and fraud, as part of efforts to enhance public safety.
Last week's hitman murder of a 54-year-old surveyor in Athens and more 'Mykonos Mafia' incidents prompted Greece to get tougher on crime.