The Russian military on Wednesday threatened to strike Ukraine's command centers in the capital Kyiv if Ukrainian troops continue to attack Russian territory, AFP reported.

"We are seeing Ukrainian troops' attempts to carry out sabotage and strike Russian territory," the Russian defense ministry said in a statement. "If such cases continue, the Russian armed forces will strike decision-making centers, including in Kyiv."

Since President Vladimir Putin began a military operation on February 24, Moscow has accused Kyiv forces of attacking territory in southern Russia.

Earlier this month Russian troops pulled back from areas north of Kyiv and are now refocusing their efforts on capturing more territory in eastern Ukraine.

The Russian defense ministry confirmed that its troops had now full control of the port in the besieged city of Mariupol.

The ministry added that Ukrainian troops and members of the Azov battalion had been encircled and "deprived of the opportunity to escape.”