Russia has warned Ukraine it is playing a dangerous game over Crimea, after accusing Ukraine's government of backing an attempted incursion in the disputed territory.Dina Gerolymou and Themis Kallos discuss the story.
The Russian foreign ministry is urging other countries to exert pressure on Ukraine to refrain from taking what it calls dangerous steps.
Ukrainian president Petro Poroshenko has put his country's military on a high state of alert along the de facto border with Crimea.
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