Police in the Colombian port city of Barranquilla said they seized 10.5 tons of cocaine with a street value of 1 trillion dollars, dpa reported.
The drugs were found in a truck hidden in cartons with plastic products that were to be loaded on to a freighter bound for Mexico.
Colombia is the world's largest producer of cocaine, with an estimated 700 tons a year. This year, police have seized 105 tons of the drug.