Ukraine's Prime Minister says Vladimir Putin's appeal to pro-Russian separatists not to hold a referendum on independence is "hot air".
The referendum had been due to take place on Sunday in eastern Ukrainian cities that are no longer under the control of the government in Kiev.
The Interfax news agency reports Prime Minister Arseniy Yatsenyuk responding to Mr Putin's intervention by saying "there is no point in dealing in hot air".
European Union foreign ministers added 13 people to their visa ban and asset freeze list over Ukraine's crisis.
Well that’s the voting over, and no surprises so far. A ‘Yes’ vote claimed to be 89% in Donetsk, and suddenly Ukraine is no more.
Nearly 90 percent of voters in eastern Ukrainian region voted for self-rule, the head of the separatist election commission said.