Tensions Running High in Ukraine

An anti-Yanukovych protester buckles her helmet as she stands guard outside the parliament building along with her comrades in Kyiv, Feb. 27, 2014. 

An anti-Yanukovych protester sleeps as another prepares food in Independence Square, Kyiv, Feb. 27, 2014. 

Anti-Yanukovych protesters riding on top of a military armored vehicle in Independence Square, the epicenter of the country's current unrest, in Kyiv, Feb. 27, 2014. 

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Anti-Yanukovych protesters gather outside the parliament building in Kyiv, Feb. 27, 2014. 

Anti-Yanukovych protesters take part in a rally outside the parliament building in Kyiv, Ukraine, Feb. 27, 2014. 

U.S. Secretary of Defense Chuck Hagel talks with Ukraine's acting Defense Minister Oleksandr Oliinyk prior to a meeting of NATO defense ministers and the NATO-Ukraine Commission in Brussels, Feb. 27, 2014.

Mans Zelmerlow representing Sweden celebrates kissing the trophy after winning the final of the Eurovision Song Contest in Austria's capital Vienna.