Pro-Russian separatists will vote to set up a breakaway regional leadership in the eastern Ukraine region of Donetsk and Luhansk aiming to take their war-torn region closer to Russia and defying Kiev and the West as the big guns still boom across the territory.
Ukrainians vote in an election that is likely to install a pro-Western parliament and strengthen President Petro Poroshenko's mandate to end separatist conflict in the east, but could fuel tension with Russia.
People wrapped up warmly on a cold, clear day to vote in the first parliamentary poll since protests in the capital Kiev last winter forced Moscow-backed leader Viktor Yanukovich to flee and ushered in a pro-Europe leadership under Poroshenko.
In eastern regions controlled by the army, soldiers armed with automatic rifles and wearing bulletproof jackets guarded polling stations under the yellow and blue Ukrainian flag.
Ukraine's curiously named Internet Party has come up with an offbeat campaign gimmick to lure voters - dressing as Star Wars characters.
Tensions remain high in eastern Ukraine after at least three died in a day of shooting during what was supposed to be an Easter truce.
In an exclusive interview with NBC News, the Ukrainian Prime Minister warns of the dangers of unchecked Russian expansion and aggression.