Spanish police have intercepted a ship carrying four tons of cocaine on the Atlantic, police said Monday. About 150 drug bundles were hidden inside the vessel, which had set sail from Venezuela, dpa reported. Police said the traffickers intended to unload the cocaine onto smaller boats, which were to take it ashore in the northwestern Spanish region of Galicia. The operation had been planned by Colombian, Mexican and Spanish traffickers. The six crew were detained, as well as a total of five people in northern Spain and Madrid.