Russia on Monday demanded a full French investigation into explosions at its consulate in Marseille which it said looked like an act of terrorism, state news agency TASS said.
There was no word on any casualties, and no immediate information on the extent of any damage.
"The explosions on the territory of the Russian Consulate General in Marseille have all the hallmarks of a terrorist attack," TASS quoted Foreign Ministry spokeswoman Maria Zakharova as saying.
"We demand (from France) exhaustive and prompt measures to investigate, as well as steps to strengthen the security of Russian foreign missions."
The incident in the southern French city took place on the third anniversary of the Russia-Ukraine war.
French media earlier reported that a blast was heard near the consulate and firemen were at the site.
Writing by Anastasia Teterevleva and Mark Trevelyan