The major operation, which began at about 5 a.m. on Wednesday, led to at least 20 arrests and the seizure of 29 weapons.
Montreal police Cmdr. Ian Lafrenière said the operation follows a two-year long investigation into Italian organized crime and the distribution of cocaine in the city.
More than 100 officers with the Montreal, Laval, Terrebonne and Quebec provincial police, as well as officers with the RCMP carried out 30 search warrants in Montreal's east end, as well as in Terrebonne and Laval.
Lafrenière said members of the emerging drug ring are younger than usual.
He said the group was not linked to the reputed head of the Montreal mafia, Vito Rizzuto.
The suspects arrested in today's operation are scheduled to appear in court on Thursday.
Police will also be investigating the seized weapons to see if any are linked to past crimes.
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