13 Ukraine troops dead, over 30 wounded in attack

Three charred Ukrainian armored infantry vehicles, their turrets blown away, and several burned trucks stood at the road site in Blahodatne. Scorched bodies, apparently burned by the explosion and fire, were scattered near the vehicles.  Acting Prime Minister Arseniy Yatsenyuk blamed Russia for backing the rebels in the Donetsk and Luhansk regions, which have declared independence from the government in Kiev.

 He issued a call for an urgent session of the UN Security Council.

Today's carnage cast a shadow over Ukraine's upcoming presidential vote on Sunday, which separatists in the east have pledged to derail. Authorities in Kiev see the vote as a chance to defuse tensions and stabilize the country. Even so, they have admitted it will be impossible to stage the vote in some eastern areas where election officials and voters have faced intimidation and sometimes death threats from the rebels.