ພາບຫລ້າສຸດ ຈາກ ຢູເຄຣນ

A pro-Russia protester breaks a piece of stone at a barricade outside a regional government building in Donetsk, in eastern Ukraine, April 15, 2014.

A female member of a "Maidan" self-defense unit stands guard in front of the Ukrainian parliament building in Kyiv, April 15, 2014.

Ukrainian soldiers stand near amored personnel carriers that fly a Ukrainian flag, as the Ukrainian army troops receive ammunition in a field on the outskirts of Izyum, eastern Ukraine, April 15, 2014.

People stand at a barricade at the regional administration building that Moscow loyalists had seized earlier in Donetsk, Ukraine, April 15, 2014.

Ukranian troops stand guard at a checkpoint near the city of Izyum in the Kharkiv region of eastern Ukraine, April 15, 2014.

A Ukrainian soldier stands guard at a checkpoint near the city of Barvenkovo in the Kharkiv region of eastern Ukraine, April 15, 2014.

Members of the Ukrainian Interior Ministry walk past an MI-8 military helicopter and armored personnel carriers at a checkpoint near the town of Izyum, eastern Ukraine, April 15, 2014.

Ukraine's energy minister, Yuri Prodan (right), and Slovakia's economy minister, Tomas Malatinsky (2nd left), attend a meeting at a delivery station of pipeline operator Eustream in the eastern Slovak town of Velke Kapusany, near the border with Ukraine, April 15, 2014.

Pipelines are seen at a gas border delivery station of pipeline operator Eustream in the eastern Slovak town of Velke Kapusany, near the border with Ukraine, April 15, 2014.