Six people were arrested last week trying to smuggle more than $716,000 worth of illegal drugs across the Mexico-Arizona border.

All totaled, 20 pounds of methamphetamine and nearly 45 pounds of cocaine were seized by Customs and Border Protection officers Wednesday and Thursday, Rob Daniels, spokesman for the Department of Homeland Security, said in a news release.

Wednesday afternoon at the San Luis Port of Entry, a narcotics detection dog alerted to the undercarriage of a Ford SUV driven by a 51-year-old man from Mexico. Officers found 13 packages of meth weighing almost 14 pounds, in the truck’s transfer case. The meth was estimated to be worth more than $216,500.

Early Thursday morning at the San Luis Port, a narcotics detection dog alerted to the presence of drugs near the battery of a Chevrolet pickup truck driven by a 49-year-old Nogales resident. Officers removed the battery and found a six-pound package of meth worth more than $97,000.

Later Thursday morning at the San Luis Port, officers found 13 packages of cocaine, weighing more than 34 pounds in a Jeep SUV after a narcotics dog alerted to the front fenders of the vehicle. The cocaine was worth more than $310,000. A 24-year-old Mexican man and his 45-year-old father were driving the SUV across the border.

At the Nogales Port of Entry Thursday, a 42-year-old man and a 52-year-old woman, both from Nogales, Sonora, were detained after a narcotics dog detected drugs in the man’s Dodge pickup truck. Officers found six packages of cocaine, weighing a total of 10 pounds, in the engines heater core. The stash was worth more than $93,000.

The drugs and vehicle were seized. All of the suspects were turned over to U.S. Immigration and Customs Enforcement’s Homeland Security Investigations.