U.S. investigators seized 11,699 pounds (about 5,307 kg) of marijuana from two tractor-trailers at the Mariposa Port of Entry in Nogales, Arizona, on 7 March 2011.[1][2] The drugs, packed in 504 bales across the two trailers, had an estimated street value of $6.6 million.[2][3]

Homeland Security Investigations agents in Nogales learned through an ongoing inquiry that smugglers planned to move the two loads through the port.[1][2] Agents found the first trailer near Industrial Park Drive, then alerted Customs officers at the port to watch for the second.[1] Detector dogs found the first load in a false compartment, and an X-ray examination revealed a false compartment in the second truck as well.[3]

The first trailer held 260 bales weighing 6,013 pounds, and the second held 244 bales weighing 5,686 pounds.[1][2] CBP’s Arizona field director said seizures of this size, built on cooperation between agencies, should warn criminal groups that exploiting the border would not be tolerated.[1]