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Ukraine warns Russia against 'act of aggression' in Crimea

Ukraine's acting president has warned Russia that troop movements outside its naval base in Crimea would be seen as an "act of aggression". Armed men seized regional government headquarters and parliament and the Russian flag is flying from buildings

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What sparked the protests in Ukraine?

Twenty-five people have been killed in the Ukrainian capital Kiev, in the deadliest clashes since anti-government demonstrations began three months ago.

What caused the original unrest?

  • Demonstrations erupted in November after the government rejected a major political and economic pact with the European Union in favour of closer ties with Russia
  • The EU deal would have brought sweeping reforms and investment into the country
  • Ukraine subsequently agreed a $15 billion (£9 billion) bailout from Russia
  • Anti-protest laws designed at curbing the demonstrations sparked further outrage although the legislation was later withdrawn

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