The seized guns were obtained illegally and with criminal intent, Ontario Provincial Police Chief Superintendent Paul Mackey told reporters. He said Canadian authorities worked with U.S. law enforcement officials on the crackdown.

With gun crime on the rise, Prime Minister Justin Trudeau's government has proposed freezing handgun purchases as part of a broader gun control package under consideration in parliament.

Last week Canada announced a temporary ban on the import of handguns until the legislation is implemented. Canada has much stricter gun laws than the United States.

Police brought more than 400 charges by the time the investigation concluded in late July, according to York Regional Police in Ontario, Canada's most populous province. The drugs included cocaine, fentanyl and heroin.

($1 = 1.2763 Canadian dollars)

(Reporting by Ismail Shakil in Ottawa; Editing by Howard Goller)