Pan-European crime fighters Europol and Portuguese authorities have teamed up to take down a illegal cross-border online gambling operation.

On Friday, Europol announced a series of raids in Portugal and Luxembourg earlier this week that resulted in the arrests of 31 individuals. The arrests followed a 15-month investigation dubbed Shadow Game that targeted an illegal sports betting and lottery operation which reportedly earned illicit profits of €80m before the whip came down.

Europol said this ring was “a structured and hierarchical transnational criminal organization” with a presence in Belgium, Luxembourg, Portugal and Switzerland. Their illegal business was “active in the field of servers and software for the development of games of chance, lotteries and sports betting.”

The suspects’ alleged goal was to “obtain and maximize illicit revenues by dividing them along the chain of operators and reinvesting them in economic sectors and licit enterprises.” In addition to those unfortunate enough to have been arrested, Europol has indicted 93 other individuals – including some based in Brazil – as well as 14 commercial companies.