U.S. Customs and Border Protection agents in Nogales, Arizona, seized more than $200,000 hidden in the car of a Mexican citizen about to cross the border into Mexico.

Roberto Federico Martinez was arrested Thursday when he tried to leave the country through the Customs and Border Protection kiosk at Dennis DeConcini Port in Nogales.

CBP agents picked Martinez's car to carry out a second inspection and in the auto's gas tank found 21 packages with a total of $229,838 in cash.

Authorities confiscated both the money and the car, while handing over the detainee to Immigration and Customs Enforcement agents.

The Arizona border is one of the chief points of entry and departure for traffickers of undocumented immigrants and drugs between Mexico and the United States.

The federal government has stepped up its efforts to combat the drug cartels, seizing profits obtained illegally by means of inspections at exit kiosks on the border with Mexico. EFE