Prosecutors said that the U.S. Border Patrol agent had helped a Mexican cartel to move illegal weapons and ammunition south of the border and illicit drugs to the north.
Carfentanil is a synthetic opioid that is 10,000 times stronger than morphine and is currently sold in the U.S. as heroin
Journalist Carolina Rocha was in Nogales, Arizona, when she spotted two young men in black t-shirts and jeans climbing down the fence in daylight.
The CBP agents discovered the drugs within six boxes identified as aircraft parts in a tractor-trailer driven by a Mexican man.
The Federal Attorney General's Office said Thursday in a statement that troops came upon the aircraft at a clandestine airstrip in the town of El Castillo.
Peruvian ambassador said that it also has presence in Bolivia.
More than 1,800 immigrants that the federal government wanted to deport were nevertheless released from local jails and later re-arrested for various crimes.
Some of the drugs were hidden in car and truck parts.