Authorities said more than 3,100 pounds of drugs has been seized by U.S. Customs and Border Protection from a vehicle that was purportedly carrying medical supplies from Mexico into California, marking the “2nd largest” meth bust along the southwest border.

According to CBP, besides methamphetamine, officials also discovered a large amount of heroin, fentanyl powder & fentanyl pills, all of which were mixed with medical instruments such as plastic pipette tips & spray bottles.

The bust happened on Friday morning at the Otay Mesa cargo border in San Diego.

The driver, a Mexican man, 47, was arrested & turned over to federal immigration authorities to face criminal charges.

According to authorities, the amount of drugs found in the vehicle is worth an estimated $7.2 million.