Mexican officials found 45 kilograms of fentanyl in a vehicle in Baja California, on Thursday. The security forces intercepted the vehicle about an hour and a half south of the Californian border.
The quantity of fentanyl discovered in the car could kill millions of people, after comparing the find to two kilograms of the drug seized last year in Ohio, which officials said could wipe out the city's 860,000 population.
Fentanyl is lethal in doses as small as a few milligrams. One man was arrested in connection with the find, authorities said. According to the Daily Mail, the man was pulled over for not having a front license plate.
The drugs were stuffed into several sacks in the rear of the vehicle, police report disclosed.
The bust also uncovered 415 kilograms of crystal meth, 40 kilograms of cocaine and 8.4 kilograms of heroin.
In November, Mexican authorities seized 14 kilograms of fentanyl in a car on a highway between the Gulf of California and San Luis Rio Colorado.
Fentanyl featured prominently in the deaths of music icons Prince and Tom Petty. A Midwest Medical Examiner's Office report revealed that Prince died after ingesting a toxic amount of the drug. While Tom Petty had multiple opioids, including Fentanyl, in his system.