US condemns Ukraine ceasefire violation, warns Russia

US Vice President Joe Biden on Tuesday blamed separatist fighters and Russian forces as he condemned the violation of a three-day-old ceasefire in eastern Ukraine and warned of increased "costs" to Russia. Biden "strongly condemned the violation of the ceasefire by separatist forces acting in concert with Russian forces, in and around the town of Debaltseve," the White House said in a statement after he spoke with Ukrainian President Petro Poroshenko. The leaders of France, G