In the eastern Ukrainian city of Luhansk, makeshift barricades, concertina wire and masked men in camouflage greeted visitors to the regional administration building April 30. Seized by armed men April 29, the building in Ukraine's restive Donetsk region is just the latest to fall under the control of pro-Russian militants.
CNN: Defiant pro-Russian activists seize more buildings
Pro-Russian activists guard the entrance to the seized SBU building in Luhansk during the rally on April 12.
