A punch-up reportedly broke out at a polling station in Nice as France votes in a tense election today.

Le Monde, France’s newspaper of record, reported that an electoral assessor allied to Éric Ciotti, the conservative leader of The Republicans political party, had tried to block the station from opening on Sunday morning.

He was reported to have punched the top official at the venue before being arrested by police officers.

The prosecutor’s office said it had opened a probe into “violence on a person in charge of a public service mission and insults to police officers”.

Mr Ciotti became highly controversial earlier in the campaign after forming an alliance with the far-Right National rally.

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