In addition to the arrests, 3kg of cocaine and other drugs as well as €103,000 in cash were recently seized in resort hotspot Magaluf, British media reported on Sunday.
The government press chief who mistakenly informed Spanish media outlets about a police raid on supporters of the Basque separatist terror group Eta before it actually took place has resigned.
Spanish police said on Tuesday they had seized €10 million ($14 million) - one of their biggest cash finds ever - and 452 kilograms (100 pounds) of cocaine in raids on a drug gang.