A truck's false wall revealed more than $900,000 worth of marijuana hiding inside the vehicle, U.S. Customs and Border Protection (CBP) officials said.
Authorities also found methamphetamine on two people who strapped the drugs to their bodies.
The narcotics were seized in three separate incidents at the Calexico ports of entry.
At approximately 3:15 p.m. on Aug. 2, a 19-year-old man was arrested at the Calexico West Port of Entry after officers discovered two packages containing methamphetamine taped to the back of each of his legs.
The nearly four pounds of drugs are worth $8,600, CBP said. The man is a Mexican citizen.
Just 30 minutes later, officers stopped a 21-year-old woman after they noticed abnormal bulges on her thighs. During an inspection, two packages containing methamphetamine were found taped to each of her thighs.
The woman, a Mexican citizen, was arrested. The drugs are worth approximately $8,000.
According to CBP, at about 5:30 p.m., officers stopped a 2008 International tractor pulling a trailer at the Calexico East Cargo Facility after anomalies were discovered in the front wall of the trailer through the port's imaging system, according to CBP.
When officers searched the trailer, they found 73 packages of marijuana hidden inside a false wall.
The marijuana is valued at $900,000.