The operation began on Friday when the police, Guardia Civil, discovered two suspected motorboats at the mouth of the Guadalquivir River and then followed the boats to Coria del Rio south of Seville.
The cocaine was stored in two containers hidden underground. According to the authorities, this is the largest seizure of cocaine smuggled into southern Spain by motorboat.
Three suspected smugglers have been arrested and two stolen vehicles and three weapons – including an AK-47 automatic rifle – have been seized.
Spain is a major gateway to Europe for drug smugglers. Much of this is due to its proximity to Morocco, which is a major cannabis producer, and its close ties to former colonies in Latin America, which is a major cocaine-producing region.