ພາບຫຼ້າສຸດ ຈາກ ຢູເຄຣນ

An elderly couple dances as local citizens gather to observe May Day in Slovyansk, May 1, 2014.

Participants hold a Soviet flag near a statue of Soviet leader Vladimir Lenin during an International Worker's Day, or Labor Day, parade in the town of Slovyansk, May 1, 2014.

Participants shout slogans and wave Russian flags during an International Worker's Day parade in Donetsk, May 1, 2014.

Local citizens march to observe May Day in the central square in Slovyansk, May 1, 2014.

A pro-Russian armed man waves to participants of an International Worker's Day parade in the town of Slovyansk, May 1, 2014.

Ukrainian government troops guard a checkpoint near the village of Dolina, 30 kilometers from Slovyansk,  May 1, 2014.

Ukraine's acting president Oleksandr Turchynov chairs a meeting at the presidential administration stating that Ukraine's police and security forces are "helpless" to quell unrest in two eastern regions bordering Russia, Kyiv, April 30, 2014.

Pro-Russian activists gather at a barricade outside the regional government headquarters in Luhansk, April 30, 2014.

Members of self-defense units of the Euromaidan movement (front) attack members and supporters of Ukrainian far-right radical groups (back) to prevent them from taking part in a torchlight procession, Kyiv, April 29, 2014.

A pro-Russian activist waves a Donbas Republic flag over a crowd celebrating the capture of an administration building in the center of Luhansk, April 29, 2014.

Pro-Russian masked and armed militants check the bus passengers' luggage, Slovyansk, Wednesday, April 30, 2014. 

Pro-Russian masked and armed militants guard barricades near Slovyansk, April 30, 2014.