Police on Friday said the individuals were linked to the Calabrian mafia known as 'Ndrangheta.
In separate drug-related arrests, police in Rome swept the run-down Tor Bella Monica suburb, arresting 15 in an overnight raid on drug-related charges. Eight of those arrested were also suspected of involvement in organised crime.
Throughout the ongoing crackdown in Rome, police have seized 10 kilogrammes of hashish, marijuana, cocaine and heroin as well as arresting ten others who alleged dealt drugs on behalf of crime organisations, anti-mafia authorities announced.
The arrests came as Italian police continue a crackdown against drug traffickers.
Last month, Milan police arrested 105 people for international drug trafficking, capping a two-year probe coordinated by anti-mafia investigators and Interpol.
Investigators say the arrests broke up two separate drug distribution rings.