American intelligence agencies are set to investigate whether the Russian government is infiltrating European political parties, amidst fears from UK government officials that a 'new Cold War' is beginning with the Kremlin.

As The Sunday Telegraph reports, the US Congress has instructed James R Clapper, Director of National Intelligence, to mount a review into secretive Russian funding of European political parties.

It is thought that this funding, reportedly given to fringe anti-establishment parties across the continent, could be designed to agitate and destablise the Nato alliance, disturb the political structures of European countries, and stifle attempts to find alternative energy sources.

According to a dossier on Russian activity seen by the paper, 'influence operations' are being conducted by the Russian Government in France, Hungary, the Netherlands, Austria and the Czech Republic.

The parties who have received Russian funding have not been revealed, but the list is thought to include a number of far-right organisations like Italy's Northern League, Hungary's Jobbik, Greece's Golden Dawn and France's Front National - which received a €9 million (£6.9 million) loan in November 2014 from the First Czech Russian Bank, which is believed to have ties to the Kremlin.

These claims mirror Cold War fears that the USSR was providing support and funding to dissident groups across Europe, in an effort to destablise Nato.

One unnamed government source told the paper: “It really is a new Cold War out there.”

“Right across the EU we are seeing alarming evidence of Russian efforts to unpick the fabric of European unity on a whole range of vital strategic issues.”