American border officers seized $5.3-million worth of pot at the Queenston-Lewiston Bridge.
U-S Customs and Border Protection says 1.5 tonnes of cannabis was found hidden inside a shipment on Sunday.
It was inside vacuum sealed bags and it was in cardboard boxes that manifested as zinc oxide.
American border officers have already seized $37-million worth of pot in two separate busts at the Peace Bridge this summer.

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