The U.S. Customs and Border Protection officers in California discovered $5 million worth of methamphetamine disguised as watermelons last week, the agency reported on Tuesday.

The Agency reports, that a 29-year-old man driving a commercial tractor-trailer ran into trouble with border protection officers at the Otay Mesa Commercial Facility in San Diego on Friday as he was trying to enter the U.S. from Mexico.

According to the CBP statement, the man said he was bringing a shipment of watermelons across the border. Officers sent the driver, his vehicle and its cargo for further examination after the first checkpoint.

The supposed shipment of watermelons was offloaded from the truck in the secondary inspection area, where, upon further inspection, officers found “1,220 packages wrapped in paper, disguised as watermelons within the shipment.”

“The contents of the packages were tested and identified as methamphetamine, with a total weight 4587 pounds,” CBP said. “The estimated street value of the drugs exceeds $5 million dollars.”

Border Protection officers seized the narcotics and the tractor-trailer, the agency said, and the driver was turned over to Homeland Security for further investigation.