Separatists holding towns across eastern Ukraine vowed on May 6 to press ahead with unofficial referendums on May 4 on the break-up of the nation.
Russia's War Against Ukraine
The Times: Defiant rebels hold break-up poll amid mounting death toll
Pro-Russian rebels said that they were \u201c90 per cent prepared\u201d for a ballot on May 11 that will seek electoral legitimacy for two breakaway republics in the largely Russian-speaking east of the country.