Two French scientists admitted to carrying out an attack on the Russian consulate in Marseille using improvised explosive devices, the local newspaper La Provence reported early Wednesday, citing unnamed sources.

Two people have been arrested in relation to the arson attack on the Russian consulate in Marseille on Monday, said the Marseille prosecutor.

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