In the first incident, an Arizona Dept. of Public Safety trooper pulled over a Chevrolet sedan heading west down I-10 near Marana on Sept. 7.
"During a consent search of the vehicle, troopers discovered approximately 30.45 pounds of methamphetamine concealed in non-factory compartments," officials said in a statement.
The driver, 61-year-old Jesus Enriquez, was arrested and booked into jail on drug charges.
Later that afternoon, a trooper pulled over a Chrysler sedan also heading westbound on I-10 near Red Rock.
"During the traffic stop, the trooper observed multiple indicators of criminal activity," officials said.
A search of the car revealed 266 pounds of methamphetamine in the car. The driver, 23-year-old Carlos Celaya, was arrested and booked into Pinal County Jail.
Both drivers are Tucson residents.
"At the rate that we are going, meth seizures seem to appear that they are going to increase this year over last year," DPS Sgt. Jesus Gastelum said. "This isn’t a natural drug, this is toxins that people are putting into their body, so it's killing their heart, the brain, the liver, the kidneys, and people become addicted with just one time they use it. It’s going to affect the rest of your life."
Arizona DPS troopers found nearly 300 pounds of methamphetamine during two traffic stops on I-10 on Sept. 7.