U.S. Customs officers have arrested seven people, including five Canadians, on charges of smuggling about 100 kilograms of marijuana into Washington state.

On Saturday, the men allegedly used Canadian military vehicles to transport the drug across the border. One of the vehicles was driven by a man who claimed he was a sergeant in the Canadian reserves.

Customs officers found five duffel bags filled with marijuana in the vehicle.

A second man in a second truck was also arrested. A third man was caught at a nearby shopping mall.

Two more Canadians and two Americans were later picked up in Seattle after the customs officers received a call on a confiscated cell phone asking why the shipment of marijuana was late.

The officers drove the drugs to a Seattle garage where the last four were arrested.