On Tuesday, the Ukrainian parliament (Verkhovna Rada) approved Ukrainian President Petro Poroshenko's proposal to appeal to the UN Security Council and the Council of the European Union for an international operation to maintain peace and security in Ukraine, where Kiev launched a military operation against independence supporters in April, 2014.
"We will not even vote," Lavrov said on Saturday, in an interview broadcast on Russia's Rossiya-1 television channel.
Meanwhile the Minsk peace deal, signed on February 12 after talks between the leaders of Russia, Germany, France and Ukraine, stipulates that the situation in southeastern Ukraine is monitored by the Organization for Security and Co-operation in Europe (OSCE).
OSCE observers from the Special Monitoring Mission (SMM) who have been deployed in Ukraine since March, 2014, at the request of the Kiev government, have been overseeing the implementation of the Minsk truce, particularly adherence to the ceasefire, in force since February 15, and the withdrawal of heavy weaponry from the line of contact between Kiev forces and independence fighters.
On Tuesday, OSCE Secretary General Lamberto Zannier told journalists that it was not clear whether a UN peacekeeping operation in Ukraine would be more successful than the present mission of the Organization for Security and Co-operation in Europe.