The leaders of Russia and Ukraine agreed on Tuesday to exchange all remaining prisoners from the conflict in east Ukraine by the end of the year but left thorny questions about the region's status for future talks.
Russian President Vladimir Putin and Ukrainian President Volodymyr Zelenskiy, in their first face-to-face meeting, took part in nine hours of talks in Paris, brokered by French President Emmanuel Macron and German Chancellor Angela Merkel.
The conflict in eastern Ukraine that broke out in 2014 has killed more than 13,000 people, left a large swathe of Ukraine de facto controlled by Moscow-backed separatists and aggravated the deepest east-west rift since the Cold War.