With the final round of the French elections just days away, incumbent French President Emmanuel Macron has seen his lead widen, but experts warn the battle is far from over

Far-right challenger Marine Le Pen has accused her challenger of fear-mongering, but three new polls have Macron’s lead at the highest level since before the first round of elections.

Macron’s popularity is now sitting around 55 percent, which is an increase of over a point from Friday, and an average of three points compared with polls before the first round of elections kicked off.

But experts and leaders of the country remain cautious in calling the result, with Prime Minister Jean Castex warning it is too early to claim victory.

Castex says “the game is not done and dusted” as both Le Pen and Macron give their final push in the race to the Élysée Palace.

It comes at the French finance minister told Europe 1 radio Le Pen will “hand France’s sovereignty to Vladimir Putin and to Russia” if she is elected.

In a new campaign clip, Le Pen has accused Macron and his allies of frightening citizens into voting against her.

In the clip, Le Pen says Macron “has turned to blackmail by fear, fear is the president’s only remaining argument”.