MOSCOW (Reuters) - Reviving peace talks in Ukraine will be "much more difficult" now that Kiev has failed to extend a ceasefire in eastern Ukraine, Russian Prime Minister Dmitry Medvedev said on Wednesday.
"In breaking the ceasefire, (Ukraine's) President (Petrol) Poroshenko made a dramatic mistake. It will cause more casualties. And he is now personally responsible for them," Medvedev wrote on his Facebook page.
