The campaign team of French presidential candidate Emmanuel Macron said it had been the victim of a "massive hacking attack" after a trove of documents was released online.

The apparent hack came on the final day of campaigning in the French presidential election, with Mr Macron, the centrist, facing Marine Le Pen, the far-Right candidate, in tomorrow's run-off.

Immediate suspicion fell on Russia, which has been accused of meddling in the US election to help get Donald Trump elected in November.

Campaign officials stated on Friday that authentic documents had been mixed on social media with fake ones to sow "doubt and misinformation" and that it was a clear attempt to undermine Mr Macron.