In addition to the Belgian, 15 Spaniards, 4 Dutch, 4 British nationals, 2 Danes, an Austrian, an Ecuadorian and an Irish national have been detained.
The gang is reported to have operated in several European counties. They are active in the sale and distribution of XTC, speed, marihuana and hashish.
Large quantities of drugs were discovered during more than a dozen raids in Spain and Denmark. These included 224kg of marihuana, 36.7kg speed and more than 2,200 XTC pills. Material used in the production of drugs was also found as were weapons, cars and more than 166,000 euro in cash.