Officers searching the homes of 19 suspects throughout the country, from Milan to Sicily, seized automatic weapons, rifles, crossbows, swords, knives, Nazi flags and books on dictators Adolph Hitler and Benito Mussolini, police said.

Those targeted belonged to the fledgling National Italian Socialist Workers’ Party, which has an openly anti-Semitic and xenophobic programme and was in contact with Britain’s Neo-Nazi Combat 18 and Portugal’s far-right New Social Order.

The group used a closed chat called “Militia” dedicated to training the militants.

The head trainer was a member of the powerful Calabrian mafia ‘Ndrangheta, who had collaborated with police on previous investigations and was a local leader in Liguria of the small, far-right Forza Nuova party, police said.