Police say they've found three tonnes of cocaine aboard a ship just off the Spanish coast.<br/> <br />Spanish coastguard video was released on Wednesday after the ship was intercepted 50 miles off the port of Cadiz.<br/> <br />31 people were detained including Bulgarians who were said to have picked up the cocaine in South America and a group of Colombians who were alleged to have masterminded the huge smuggling operation, from Madrid.<br/> <br />A group of Spaniards also detained in the co-ordinated bust were said to have been planning to distribute the contraband cargo throughout Europe.<br/> <br />All 21 crew members were also arrested.
