Andriy Lysenko

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  Ukraine Says Cyber-Attack on Airport Launched From Russia

  "The control centre of the server, where the attacks originate, is in Russia," military spokesman Andriy Lysenko said.

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  4 Killed Ahead of New Ukraine Peace Talks

  Ukraine on Monday reported the death of four soldiers in clashes with pro-Russian rebels that came only hours ahead of fresh talks on ending the 15-month separatist revolt.

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  Rebels in New Push to Cut Off Ukraine Rail Hub Ahead of Talks

  Rebel fighters made a push today to cut off a government-held road and rail junction in east Ukraine, vowing on the eve of peace talks that they would not cease fire until they had achieved their aim of taking more territory.

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  Ukraine Says Rebels Keep up Attacks Into New Year

  Ukrainian separatists carried out sporadic attacks on government forces as the New Year began, wounding three soldiers, the Kiev military said, as President Petro Poroshenko told the nation to brace for a year that would "not be easy".

• Ukraine Peace Efforts Stall Despite Lull in Fighting

  Ukrainian peace efforts stalled on Wednesday after pro-Russian insurgents called their own elections in defiance of a deal under which they and the Ukrainian army began withdrawing heavy weapons after five months of war.

• Ukraine PM Slams Putin, Ceasefire Again Under Strain in East Ukraine

  Fighting flared near an airport in eastern Ukraine on Saturday in breach of a fragile eight-day ceasefire as the prime minister accused Russian President Vladimir Putin of planning to destroy his country.

• Ukrainians Pull Back From Airport; Petro Poroshenko Slams Russia

  Ukraine's military said on Monday it had pulled its forces back from defending a vital airport in the east against Russian tanks, as President Petro Poroshenko accused Moscow of "direct and open aggression".

• Rescue Under Way After Separatists Claim First Attack on Ukrainian Ship

  Ukraine said one of its naval vessels came under artillery attack from the shore on Sunday, in what pro-Russian rebels claimed as the first sea victory of their separatist war.

• Ukraine Says Russian Tanks Flatten Town; EU to Threaten More Sanctions

  Ukraine said Russian tanks had flattened a small border town and pro-Russian rebels had made fresh gains in its east, as EU leaders signalled on Saturday they would threaten more sanctions against Moscow over the crisis.

• Ukraine Accuses Russia of Opening New War Front Before Leaders' Meeting

  Ukraine accused Russia on Monday of sending soldiers across the border to open a new front in the separatist war that has devastated the east of the country and provoked the gravest East-West crisis since the fall of communism.

• Ukraine Plans $3 Billion Boost to Defence Spending

  As armored vehicles rumbled through downtown Kiev in an ostentatious celebration of Ukraine's independence, pro-Russian rebels who are battling government forces in the east paraded captured soldiers down the besieged streets of Donetsk and displayed charred wreckages of destroyed Ukrainian tanks.

• Fighting Complicates MH17 Crash Probe, US, European Union Prepare Russia Sanctions

  Fierce fighting in eastern Ukraine where a Malaysian airliner was downed further complicated an investigation on Sunday as Europe and the United States prepared economic sanctions on Russia over the conflict.

• Ukraine Launches Offensive to Retake Donetsk

  Ukrainian officials said their forces advanced to the outskirts of a key town north of Donetsk on Saturday as they try to retake the stronghold held for months by pro-Russia rebels.