A woman outside a trade union buildingwhere a deadly fire occurred, during a rally in Odessa today. At least 42 people were killed in street battles between supporters and opponents of Russia in southern Ukraine. Photograph: Yevgeny Volokin/Reuters

At least 42 people were killed in a street battle between supporters and opponents of Russia in southern Ukraine that ended with dozens of pro-Russian(...)

Pro-Russian separatists in eastern Ukraine have seized seven international observers with the Organization for Security and Co-operation in Europe (OSCE) as well as five Ukrainian soldiers and their bus driver, the Ukranian Foreign Ministry said. Photograph: Roman Pilipey/EPA

The United States said today it was prepared to impose further sanctions on Russia over its actions in Ukraine, where armed pro-Moscow separati(...)

A pro-Russian armed man looks on near the mayor’s office in Slaviansk. Eastern Ukraine seems to be rapidly spinning out of the control of the central government. Photograph: Gleb Garanich/Reuters

Moscow must show it is serious about a de-escalation in Ukraine by pledging concrete steps to ease tensions in four-way talks scheduled for Thu(...)

Pro-Russian protesters attend a rally as a placard of Ukrainian prime minister Yatsenyuk reading ‘Shut up, and enjoy by democracy!’ is stuck into a barricade in front of city hall in Kramatorsk , Ukraine. Photograph:
Anastasia Vlasova/EPA

The EU’s sanctions against Russia are to be expanded with more people added to the list subject to asset freezes and visa bans, EU foreign pol(...)

German chancellor Angela Merkel arrives for the meeting of G7 leaders in The Hague today. Photograph: Jerry Lampen/Getty Images/Pool

US president Barack Obama and major industrialised allies warned Russia today it faced damaging economic sanctions if President Vladimir Putin (...)

Speaker of the Russian State Duma, Russia’s lower parliament house, Sergei Naryshkin (2nd R) shakes hands with leaders of the Crimean parliamentary delegation speaker Vladimir Konstantinov (2nd L), prime minister Sergei Aksyonov (L) and Sevastopol Mayor Alexei Chaliy during a meeting in Moscow. Photograph: Sergei Karpukhin/Reuters.

Russia’s lower house of parliament has overwhelmingly approved a treaty to annex Crimea from Ukraine, leaving just one legal obstacle for the (...)

The guided-missile destroyer USS Truxtun in the Black Sea yesterday. The US destroyer carried out a naval exercise with other ships in the latest display of American military power just a few hundred kilometres from Crimea. Photograph: Stoyan Nenov/Reuters

EU heads of state arrive today in Brussels for the start of a two-day summit which will be dominated by the Ukrainian crisis, as the European U(...)

A woman and her child walk past soldiers without insignia as they stand guard outside a Ukrainian military base in Simferopol today. Photograph: Uriel Sinai/The New York Times.

A Ukrainian serviceman was killed today at a Ukrainian base that came under attack in Crimea’s main town Simferopol. (...)

A Russian flag behind an armed servicemen on top of a Russian army vehicle outside a Ukrainian border guard post in the Crimean town of Balaclava today. Photograph: Baz Ratner/Reuters

Ukraine has asked Nato to look at all possible ways to help it protect its territorial integrity, foreign minister Sergei Deshchiritsya said to(...)

Photos of people reported to have died during clashes in Kiev at a makeshift memorial in the Little Ukraine section of the Manhattan borough of New York. Photograph: Carlo Allegri/Reuters

Fugitive Ukrainian president Viktor Yanukovich, ousted after bloody street protests in which demonstrators were shot by police snipers, is wanted f(...)