Finland has closed all but one border with Russia, with "dozens" of EU officers sent to provide support to the region amid a major influx of migrants.

It comes as Moscow was accused of attempting to destabilise the area by funnelling migrants across the frontier.

A 50-strong group of Frontex officers are set to be deployed to help patrol the 833 mile-long border.

More than 800 migrants from nations including Afghanistan, Kenya, Morocco, Pakistan, Somalia, Syria and Yemen have entered Finland via Russia in recent weeks, according to the Finnish Border Guard.

Finnish officials have accused Russia of funnelling migrants to the border in retaliation for its decision to increase defence cooperation with the United States.

The Kremlin has denied these charges.

Finland has responded by closing all but one of its eight border crossings with Russia.

Only the Raja-Jooseppi crossing in the far-northern Arctic region has remained open, though Helsinki has signalled it may also be shut over the crisis.

The Raja-Jooseppi crossing is the only one that remains open

Russian authorities have indicated they will ferry more migrants to the border.

The governor of Russia’s northwestern Murmansk region Governor Andrei Chibis said officials were planning to transport 55 migrants from the shuttered Salla border crossing to the Raja-Jooseppi crossing.

Baltic nations Estonia and Latvia, like Finland, have accused Moscow of sending migrants to their borders with Russia in what all three countries have described as "hybrid attack" operations.

According to Governor Chibis, another 200 foreign nationals who were unable to cross the border have decided to stay in Russia and will be provided with a bus connection to St Petersburg.

The crossing across the border could close

Helsinki infuriated the Kremlin earlier this year when it joined Nato, ending decades of non-alignment in response to Russia’s full-scale invasion of Ukraine.

The move doubled the length of the transatlantic alliance’s member state’s borders with Russia.

Vladimir Putin had repeatedly complained of Nato’s expansion before ordering Russia’s forces into Ukraine.

Frontex currently has 10 officers working at the Finnish borders.