The Ontario Provincial Police are calling Thursday's drug bust on B-Line Road near Pembroke the largest ever in Canada.

More than 40,000 plants were seized at the farm property at 1970 B-Line Road in Laurentian Valley Township over the weekend, with an estimated street value of $40 million.

On Thursday, members of the Upper Ottawa Valley OPP Crime Unit, assisted by the OPP Drug Enforcement Section and the Emergency Response Team, executed a Controlled Drugs and Substances Act warrant on the 200-acre farm.

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