ພາບ​ຫຼ້າ​ສຸດ ຈາກ ຢູ​ເຄ​ຣນ

People watch as a seized armored vehicle that was set on fire smolders in the center of Mariupol, eastern Ukraine, May 10, 2014.

People react as they stand in front of a burning barricade near the city hall in Mariupol, eastern Ukraine, May 10, 2014.

People walk through a square as black smoke billows from burning tires to prevent government armored personnel carriers from passing through the center of Mariupol, eastern Ukraine, May 10, 2014.

Election commission worker Vera Pozhidaeva demonstrates the readiness of a polling station for Sunday's referendum in the eastern Ukrainian city of Lugansk, May 10, 2014.

Ballot boxes bearing the flag of Donetsk People's Republic are seen at a polling station, in preparation for the upcoming referendum in Donetsk, Ukraine, May 10, 2014.

Election commission workers count ballots at a polling station ahead of Sunday's referendum in the eastern Ukrainian city of Slovyansk, May 10, 2014.

A WWII Soviet flag replica and a portrait of former Soviet leader Joseph Stalin fly above crowds gathered for a religious service in memory of the victims of the trade union building blaze in Odessa, Ukraine, May 10, 2014.

Local residents gather for an Orthodox ceremony to mourn the deaths of pro-Russian supporters killed recently in the Black Sea port of Odessa, Ukraine, May 10, 2014.