“The Allies are calling on Russia to immediately de-escalate.
We are ready for further dialogue with Russia, but we will not compromise on key principles," the alliance's secretary general wrote on Twitter.
Deputy Foreign Minister of Russia Sergei Ryabkov said earlier that NATO countries continue to put forward unfounded claims against Moscow.
Russian Foreign Minister Sergei Lavrov, in a telephone conversation with US Secretary of State Anthony Blinken, urged him not to replicate speculation about the allegedly impending "Russian aggression", but to force the Ukrainian authorities to implement the Minsk agreements in full.