U.S. Customs and Border Protection officers at the San Luis , Arizona Port of Entry intercepted a large shipment of marijuana destined for the U.S. 

According to the CBP report , a tractor-trailer rig being driven by a 26-year old San Luis Rio Colorado , Sonora , Mexico man ,attempted to enter the U.S. when a canine team alerted to the trailer. A search led to the discovery of more than 1,995 pounds of marijuana hidden in the roof of the otherwise empty trailer. The estimated value of the marijuana is $998,000. The driver was arrested and turned over to Homeland Security Investigations.