Gunfire crackles and flames scar battlefields in eastern Ukraine -- signs, officials warn, of a crumbling ceasefire in the volatile region.
Russia's War Against Ukraine
CNN: Ukraine violence flares as ceasefire collapses
A woman collects the remnants of her house destroyed as a result of fighting between Ukrainian forces and pro-Russian militants in the outskirts of eastern Ukrainian city of Donetsk on Nov. 11, 2014.
