Pro-Russian rebels shot down two Ukrainian helicopters on Friday, May 2, 2014, killing two crew members, as troops tightened their siege of separatist-held Slovyansk.
ພາບຫຼ້າສຸດ ຈາກ ຢູເຄຣນ

1
A pro-Russian separatist guards a checkpoint as tires burn in front of him, near the town of Slovyansk, Ukraine, May 2, 2014.

2
Pro-Russian gunmen listen to instructions from their commander (center) behind barricades in Slovyansk, May 2, 2014.

3
A pro-Russian rebel aims his rifle at a checkpoint near a Ukrainian airbase in Kramatorsk, eastern Ukraine, May 2, 2014.

4
Ukrainian troops guard a checkpoint near the town of Slovyansk, May 2, 2014.