Poland has denied entry to its territory to the Russian Foreign Minister, Sergey Lavrov, who was supposed to participate in the meeting of the heads of diplomacy of the OSCE.
Russia has called this decision by Poland as a provocation and unprecedented.
"Poland's decision is provocative and unprecedented. Warsaw was not only discredited in this way, but also caused an irreparable blow to the prestige of the entire Organization for Security and Cooperation in Europe," the Russian Foreign Ministry said in a statement.
Poland, which is hosting the OSCE ministerial meeting in early December, announced yesterday that it denied Lavrov entry to its territory.
"We expect the Russian Federation to choose the members of its delegation in accordance with the current rules," said a source from the organization's rotating presidency, held from Warsaw this year.
According to this source, the Russian delegation should not "include individuals who have been sanctioned by the European Union" following Russia's invasion of Ukraine on February 24, including Lavrov.
"We are sure that all reasonable politicians share the view of the Russian side that such actions are unacceptable," Russian diplomacy said.
"These harmful decisions of the Poles are pushing the OSCE into the abyss," he said, accusing the OSCE of turning into a "ground" for "anti-Russian drills."
The meeting of 57 OSCE foreign ministers will be held on December 1 and 2 in Łódź, a city in central Poland.
The Russian delegation will be led by the Russian ambassador to the OSCE, Alexander Lukashevich, according to Moscow.