San Luis, Arizona - U.S. Customs and Border Protection officers at Arizona’s Port of San Luis arrested a Mexican national after seizing more than $559,000 in undeclared currency.

Officers performing outbound inspections referred the 37-year-old man Thursday afternoon, when a search of his Chevy truck led to the discovery of packages inside of his spare tire. A count of the cash totaled more than $559,290.

Customs and Border Protection officers seized the currency, and turned the subject over to U.S. Immigration and Customs Enforcement’s Homeland Security Investigations.

Federal law allows officers to charge individuals by complaint, a method that allows the filing of charges for criminal activity without inferring guilt. An individual is presumed innocent unless and until competent evidence is presented to a jury that establishes guilt beyond a reasonable doubt.