Police arrested 86 people in the southern city of Naples on Tuesday in a major operation against the local mafia or Camorra's drug-trafficking and drug dealing rackets.
Police said the bust had smashed the Puccinelli clan's drug rackets in its Naples stronghold of Rione Traiano.
Entire families linked to the clan were involved in making up and selling the doses of cocaine, hashish and marijuana inside fortified underground bunkers, police said.
The bunkers were concealed beneath apartment buildings and were monitored by security cameras, police said.
The brutal workings of the Camorra, one of Italy's oldest and most bloodthirsty mafias, was laid bare by author Roberto Saviano in his blockbuster 'Gomorrah'.
'Gomorrah' was made into an award-winning film of the same name.
