Germany's weightlifting coach has called for seven countries, including Kazakhstan, to be banned from international competition/
Ukraine said Thursday it had reached an agreement with the US-based electric giant Westinghouse to build a nuclear fuel production unit.
Ukrainian Prime Minister Arseniy Yatsenyuk intends to introduce a ban on oil product imports from Russia.
A Ukrainian village renamed a street, which honoured Soviet founder Lenin, after The Beatles' John Lennon.
Ukraine is responding to Moscow's food embargo with "mirror sanctions" of its own, Prime Minister Arseniy Yatsenyuk announced.
EU nations may delay a decision on whether to roll over economic sanctions against Russia.
Dutch Prime Minister Mark Rutte defended an EU cooperation deal with Ukraine as vital for European stability only months before a referendum Dutch eurosceptics have forced on the accord.
Sanctions against Russia over its involvement in the Ukraine crisis could be lifted if Moscow fulfils commitments it made to help resolve the conflict, French Prime Minister Manuel Valls said.
Russian state giant Gazprom said it had halted gas deliveries to Ukraine after Kiev failed to make upfront payments for more supplies.
Ukrainian Prime Minister Arseniy Yatsenyuk blasted a planned second gas pipeline under the Baltic Sea, claiming it would cost his country $2 billion (1.8 billion euros) a year in lost revenue.
Ukrainian President Petro Poroshenko warned that the arrest of a millionaire associate of one of the country's most powerful oligarchs was only "the start" of a fight against the corruption plaguing the ex-Soviet country.
Standard and Poor's upgraded Ukraine's credit rating from "selective default" thanks to the cash-strapped former Soviet country's ability to strike a major debt write-restructuring deal.
Three portraits of former Soviet dictator Joseph Stalin are on display in the centre of Donetsk, the rebel capital of eastern Ukraineю
Kazakhstan and Ukraine have signed an agreement on cooperation in aviation.
German Chancellor Angela Merkel said there was a "glimmer of hope" that Ukraine could finally head towards a political solution to ending the separatist war in the country's east.
President Vladimir Putin called on the International Monetary Fund (IMF) to lend an additional $3 billion to Ukraine to help the ex-Soviet country pay off its debt to Russia.
Ukrainian Prime Minister Arseniy Yatsenyuk blamed Russia's security service for last year's downing of the MH17 airliner over pro-Kremlin separatist territory in the east of the ex-Soviet state.
Ukranian President Petro Poroshenko stressed the need for legitimate elections in the country's separatist regions in order to eventually re-integrate the pro-Moscow strongholds.
President Petro Poroshenko said a "real truce" had begun in Ukraine but that a long-lasting peace with pro-Russian insurgents would still take some time.