© RIA Novosti
More than 675,000 Ukrainian citizens have arrived in Russia since the beginning of this year, Russia's border guard service reported.

"The Russian authorities are fixing clear evidences of a coming humanitarian catastrophe," the report reads.

"During two months only /January-February/ Ukraine's 675 thousand citizens have entered Russia. If the "revolution chaos" continues in Ukraine, hundreds of thousands refugees will gush into bordering Russian regions," the border authority says.

Voice of Russia, TASS