Mexican customs inspectors say they've found more than $2.4 million in cash rolled up and stuffed into spools of telephone cable headed for Venezuela.
The customs service says the cash was taped up into 6,000 small rolls. The rolls were inserted into about 500 meters (yards) of thick phone cable, and the cable was coiled onto four spools.
The customs service added that a trained dog alerted his handler to the suspicious contents of the spools at the Mexico City airport.
A man listed as the owner of the shipment was detained.
Authorities say Venezuela is increasingly becoming a transshipment point for cocaine, and Mexican cartels often ship money back to South America to pay for the drugs.