The urgent UN Security Council session, called by Moscow against the Ukraine government’s plan to used armed forces in the East, quickly turned into a platform for mutual condemnations and accusations before breaking up without a resolution. US Ambassador Samantha Power accused Russia of “disinformation and propaganda,” adding: “This instability was written and choreographed in and by Russia.” Russian ambassador Vitaly Churkin said: Further escalation must be swiftly stopped. "It is the West that will determine the opportunity to avoid civil war in Ukraine," he added, calling for national dialogue.

Acting Ukraine President Oleksandr Turchynov said in a TV address Sunday night that he would not allow a repetition of Crimea’s annexation by Russia last month after a referendum. In the last 48 hours, pro-Russian forces seized government and police buildings in half a dozen East Ukraine cities and demanded referendums to determine their future.