Pro-Russian forces have been seen entering the eastern Ukrainian town of Slaviansk on armoured personnel carriers which reportedly were previously under the control of the Ukrainian military.
One of the vehicles was seen flying a Russian flag, while several of the people sitting on board were wearing black and orange ribbons of St George, a symbol commonly associated with pro-Russian protests in Ukraine.
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.