The Hague - More than 230 people have been arrested and 3.8 million doping substances seized in the biggest ever global crackdown on the trafficking of steroids and counterfeit medicines, Europol said.
Agencies in 33 countries including the United States, Germany, Britain and France took part in Operation Viribus, according to the European Union's law enforcement agency, as well as the World Anti-Doping Agency (WADA) and Interpol.
Seventeen organized crime groups were busted, nine underground labs were dismantled and more than 800 criminal investigations were opened as a result of the operation, which was led by police in Italy and Greece.
The International Olympic Committee welcomed the news, saying in a statement posted on Twitter that "it is crucial to target the dealers, traffickers and producers who make doping in sport possible and who drive this criminal industry.
Almost 1,000 people were reported for producing, selling or using doping substances and 24 tons of raw steroid powder were seized.