Yuma Sector Border Patrol agents report they were alerted to these bundles of marijuana when a canine agent alerted to the scent of the drugs. LOANED VIDEO/USBP

U.S. Border Patrol agents load up 1.8 tons of marijuana bundles seized after stopping two trucks that crossed illegally into the U.S. from Mexico. (Video courtesy USBP)

Yuma Sector Remote Video Surveillance System captured the pursuit of trucks packed with 2 tons of marijuana as near Yuma. Note the helicopter also in pursuit in the upper left of the first frames of the video. Video courtesy USBP

These bundles of marijuana were found in 2 trucks that crossed the U.S./Mexico border near County 12th St. and the Colorado River. U.S. Border Patrol deployed spike strips to stop the vehicles. The suspects fled back to Mexico. (Video courtesy USBP)

U.S. Border Patrol agents came upon this Jeep Cherokee stuck on a border fence in the Imperial Sand Dunes around midnight Tuesday. The occupants fled back to Mexico and agents confiscated the Jeep and the ramps. VIDEO COURTESY USCBP