The leaders of France and Germany flew out of Moscow in the dead of night after five hours of talks with Vladimir Putin on Friday, with little to announce to end fighting in Ukraine beyond a promise to keep talking.
Ukraine's prime minister blamed Russian intelligence on Thursday for a hacker attack against German government websites, for which a pro-Russian group claimed responsibility.
Germany cast doubt on whether a four-way summit on the Ukraine crisis in Kazakhstan's capital Astana on Jan. 15 would take place on Monday and France's president said the meeting would depend on the likelihood of "new progress" being made.
Ukraine's parliament approved Arseny Yatseniuk for a new term as prime minister on Thursday in a ceremony that countered reports of high-level disunity in a message to Russia over its backing of separatists in the country's east.
