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.

Tim Hortons Store to Close
Niagara Budget Delayed for Vetting
NRP Catch Driver Excessively Speeding
Trio Arrested After Drug Bust
Body Found in Fifty Point Marina Area
New Drug for Rare Cancer Introduced
NF Works to Keep Taxes Lower
Niagara Falls to House Flooding Evacuees