Finland tomorrow is temporarily shutting down its 1,340-kilometre-long eastern border with Russia after seeing an abnormally large number of migrants arrive this month — a situation its prime minister describes as a "hybrid attack" orchestrated by Moscow, Paralel.Az reports.

Finnish officials have accused Russia of guiding third-country migrants to its border crossings to manufacture a crisis, as a possible retaliation for joining NATO earlier this year.

"We don't accept any attempts to undermine our national security," Prime Minister Petteri Orpo said Tuesday at a news conference in Helsinki.

Moscow has denied the allegation and Finland's move may not be acceptable under international law.