ພາບຫຼ້າສຸດ ຈາກ ຢູເຄຣນ

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.

A woman hands a pro-Russian armed man a can of coffee outside the regional government headquarters in Luhansk, 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.

Members and supporters of Ukrainian far-right radical groups take part in a torchlight procession to commemorate people killed during protest rallies held by Euromaidan movement, 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 armed men stand guard at a checkpoint after pro-Russian activists set tires on fire when Ukrainian soldiers arrived on armored personnel carriers, in the outskirts of Slovyansk, April 30, 2014.

A woman leaves the regional government headquarters as pro-Russian armed men sit at its entrance in Luhansk, April 30, 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.

A masked pro-Russian protester sits on a chair as he poses for a picture inside a regional government building in Donetsk,  April 25, 2014.