Armed pro-Russian activist holds his weapon as he stands near the seized regional government headquarters in Luhansk

An armed pro-Russian activist holds his weapon as he stands near the seized regional government headquarters in Luhansk, eastern Ukraine, May 3, 2014. A gunfight started between pro-Russian activists and what witnesses say are Ukrainian police, near the building of the regional military commissariat. REUTERS/Vasily Fedosenko (UKRAINE – Tags: POLITICS CIVIL UNREST)