French far-Right Front National leader Marine Le Pen on Friday called for an "alliance between the US, France and Russia" to fight Islamist fundamentalism around the world as she took aim at her chief domestic rival, François Fillon, ahead of upcoming presidential elections.

Ms Le Pen, who is currently polled to lose in France's presidential run-off in May, also weighed into a row between US president-elect Donald Trump and the American intelligence community over whether Russia had interfered in US presidential elections.

Close to Vladimir Putin, the Russian president, she dismissed the claims as "conspiracy theories" and sour grapes from Hillary Clinton backers.

Speaking to members of the Anglo-American Press Association at the FN's Paris campaign headquarters, Ms Le Pen said: "I want to see an alliance emerge between the US, France and Russia in the fight against Islamist fundamentalism as this poses a gigantic threat to our respective democracies."

She added: "I'm a totally free woman. I don't want to be under the yoke of the US…I don't want to be under the yoke of Russia."

Mr Trump has repeatedly cast doubt on the suspected involvement of the Russians in attempts to interfere with US political institutions, on Friday denouncing a "political witch hunt". He was due to be briefed on a report by US intelligence officials detailing the suspected interference at the White House.