Belgian authorities say they have helped to break up a major international drug and money-laundering ring, detaining seven people and seizing millions of euros, vehicles and firearms.

The Brussels prosecutor's office said Tuesday that the crime gang moved narcotics and money between Morocco, France, Belgium and the Netherlands.

Up to 400 million euros in drug revenue was transferred between cities. Prosecutors said large sums were sent through Dubai and laundered by front companies in Casablanca.

In Belgium alone, 11 police raids involving almost a hundred officers recovered almost 3 million euros, seven vehicles, 78 pieces of computer equipment and two firearms.