The Spanish Police arrested five members of an alleged cryptographic fraud operation that allegedly washed 460 million euros ($ 540 million) stolen of more than 5,000 victims.
The bust, carried out by Civil Guard, the armed wing of the agencies of application of the law of the country, saw three arrests of searches in the Canary Islands and two in Madrid on June 25.
The investigation was supported by Europol, as well as the police forces of Estonia, France and the United States.
The criminal network raised funds through cash withdrawals, bank transfers and cryptographic payments, Europol said in a statement on Monday.
The researchers suspect that the organization of having established a corporate and banking network of Hong Kong to receive, store and transfer criminal funds through accounts in different names and in different exchanges.
The investigation is still in progress, added Europol.