U.S. Customs and Border Protection seized $2.1 million in liquid methamphetamine from a passenger vehicle at the Rio Grande City Port of Entry in Texas.

The incident took place on July 24, according to a statement released by the agency on Wednesday. CBP officers encountered a 2012 Dodge arriving from Mexico on the Rio Grande City International Bridge.

The vehicle, which was operated by a 41-year-old male U.S. citizen, was referred for further inspection by a CBP officer.

“Our frontline CBP officers at Rio Grande City Port of Entry utilized their training, experience, and use of our canine teams and technology to interdict a substantial load of hard narcotics,” Port Director Andres Guerra, said in a statement.

Upon further examination through the use of non-intrusive inspection system equipment and screening by a canine team, officers discovered 110 pounds of alleged liquid meth hidden in the vehicle.

The Customs and Border Protection, Office of Field Operations handed the driver over to U.S. Immigration and Customs Enforcement-Homeland Security Investigations after confiscating the narcotics.

Earlier this month, authorities in San Diego County seized over 5,000 pounds of meth. Officials were able to track and intercept the truck carrying the drugs after it crossed into the U.S. from Mexico.

Federal prosecutors consider the seizure one of the largest meth busts in San Diego County.

“This monumental seizure represents another win against drug cartels that fuel addiction in the United States,” Shelly S. Howe, special agent in charge at the US Drug Enforcement Administration, said in a statement.

Following the bust, four men were charged with conspiracy to distribute methamphetamine.

A U.S. patrol officer near to the Mexican border.
A U.S. border patrol officer sits in his vehicle looking out over Tijuana, Mexico, from San Ysidro, California, Feb. 25, 2015. REUTERS/Mike Blake