Tension Mounts In Eastern Ukraine

SLOVYANSK, UKRAINE - APRIL 24: Pro-Russian activists guard a smoldering roadblock outside the village of Khrestyshche on April 24, 2014 near Slovyansk, Ukraine. The roadblock was reportedly set on fire by the activists when it was approached by a Ukrainian army unit. Today Ukrainian forces began to establish new roadblocks around the cities of Slovansk and Donetsk, both strongholds of pro-Russian separatists in Eastern Ukraine. The Ukraine government claims 5 separatists were killed during skirmishes in Slovyansk today. (Photo by Scott Olson/Getty Images)