Police arrested two French nationals and two Bosnians in the northeastern town of Tuzla on Friday and searched several apartments.
The two French citizens and one Bosnian citizen remain in the custody of the prosecutor’s office and the fourth man was released, said FENA.
The French men are suspected of purchasing a rocket propelled grenade launcher with the intention of taking them to France, Bosnia’s central police, SIPA, said.
Bosnia is part of the “Balkan route” used to smuggle arms and drugs to Western Europe.
