20 people were detained under suspicion of doping trade across France, Belgium and Luxembourg on Tuesday.
According to French justice department, the suspects were involved in doping trading within the international bodybuilding scene.
Police arrested numerous suspects in Paris, in the Alsace region, in the south of France, in Belgium and also in the Grand-Duchy.
During the raids, police also also found and confiscated more than €100,000 in cash, as well as anabolic products such as steroids or growth hormones.
The activity was uncovered following the surveillance of two holding companies in Luxembourg and one laboratory in France.