Spanish police have seized what is thought to be a national record haul of cocaine from a ship in the Atlantic Ocean.
Between 30,000 to 45,000kg (33 to 50 tonnes) were found when the Civil Guard intercepted a freighter in international waters, the body's main union, the AUGC, announced. It called the move a "historic blow to drug trafficking".
The vessel was intercepted off Spain's Canary Islands on Friday and around 20 people were arrested, the AUGC told the AFP news agency. It had travelled from Sierra Leona and was on its way to Libya.
The Civil Guard has declined to give details of the investigation for legal reasons.
Interior Minister Fernando Grande-Marlaska told reporters in Madrid that the seizure was "one of the biggest, not only nationally but internationally".
