French authorities say an incendiary device has exploded outside the Russian Consulate in Marseille on the third anniversary of Russia’s invasion of Ukraine.

Three projectiles were thrown over the perimeter wall of Russia's consulate in the southern French port city of Marseille on Monday, two of which exploded, police said.

Two French physicists were on Thursday sentenced to eight months in jail for throwing homemade explosive devices at the Russian consulate in Marseille. The scientists, who work at France's state