Madrid/Paris - French police Tuesday detained eight suspected Basque separatists, French and Spanish media reported.
The arrests were made in connection with an investigation into bars linked with Batasuna, a party regarded as the political wing of the militant group ETA.
The bars were also suspected of financing French Basque radicals who have carried out attacks against restaurants and other establishments, Spanish police sources said.
Arrests were made in different locations in the French Basque region, according to Askatasuna, a group defending jailed ETA activists.
The detainees were taken to a police station in Bayonne. Police searched several addresses.