A Border Patrol K-9 team stopped the shipment of 2,133 pounds of marijuana at a border checkpoint south of Amado, Az.
The dogs, part of a Nogales border team, alerted to suspected narcotics in a semitrailer, according to U.S. Customs and Border Protection authorities.
Tucson Sector Border Patrol agents referred the vehicle for a secondary inspection.
Through the use of detection technology, agents said they discovered 88 bundles of marijuana concealed in a false wall inside the tractor-trailer.
The driver, whose name was not released, was arrested and faces possible prosecution.
The narcotics were worth an estimated $1,066,500. The shipment was turned over to the Drug Enforcement Administration.
Residents can report suspicious activity to the Border Patrol and remain anonymous by calling 1-877-872-7435 toll free.
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