French Foreign Minister Jean-Yves Le Drian said Russia's Sputnik V vaccine could be used in France as long as it meets "scientific norms" and European "standards".
"If Sputnik is confirmed and approved by the European Medicines Agency and France's top health authority, there will be no impediment to its distribution," he told Europe 1 radio.
Russian researchers say a trial of the Sputnik V vaccine found it to be 91% effective, according to a study published by the British medical journal Lancet.