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Lavrov calls for 'de-escalation of rhetoric' over Ukraine

Russian troops near the Ukrainian border will return to its permanent bases after completing its military exercises, Russia's Foreign Minister Sergei Lavrov has said, calling for a "de-escalation" of rhetoric.

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Ukraine PM: Energy could be 'new nuclear weapon'

Ukraine must keep close ties with Europe to prevent Russia using energy as a "new nuclear weapon", interim Prime Minister Arseniy Yatsenyuk has warned.

Mr Yatsenyuk was speaking after signing an association agreement with the EU ensuring closer political ties.

He also wants the EU to provide Ukraine with natural gas to counter likely increases in the cost of supplies from Russia.

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