Ukraine's acting president Oleksander Turchynov calls for the re-launch of an anti-terrorist operation after the body of a local politician from his own party is found showing signs of torture.
US Vice-President Joe Biden tells the Ukraine parliament that in future the country may not have to be dependent on Russia for its energy.
Russian Foreign Minister Sergei Lavrov accuses Ukraine of violating an accord reached in Geneva last week aimed at averting a wider conflict between the two neighbours.
At least two people were killed in a gun battle in eastern Ukraine. The outbreak of fighting in Slaviansk broke the uneasy silence that had fallen on the area after Kiev promised a truce over Easter.
The Ukrainian pressure group scaled church steeples and ambushed President Putin. But that was before the Ukrainian Revolution. Channel 4 News speaks to Femen about what happens next.
Armed pro-Russian separatists who occupied buildings in eastern Ukraine are refusing to leave, despite an amnesty offer and threats of "more concrete actions" to remove them next week.
After international talks in Geneva, the Russian foreign minister and the US Secretary of State both call for "de-escalation" in Ukraine and agree to expand an international monitoring mission.