Marine Le Pen’s campaign headquarters were targeted in an arson attack, causing minor damage to the building and prompting the Front National candidate to blame leftist groups.
Ms Le Pen said should would press for charges over the attack.
Police said unknown arsonists had thrown a petrol bomb at the building, causing damage to a door and a doormat.
Firefighters were called around 2.40am to the ground floor offices of an insurance company on the upmarket Rue du Faubourg Saint-Honore in central Paris.
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