This ends our live blogging for May 25. Be sure to check back tomorrow for our continuing coverage.
Read our report here on the other Ukrainians still being held by Russia.
With Russia's release of Ukrainian military pilot Nadia Savchenko, who returned to a hero's welcome in Kyiv, attention now shifts to the fate of other Ukrainians jailed in Russia on charges their supporters say are dubious.
At least 12 other Ukrainians remain in Russian prisons on convictions that have been condemned by the Ukrainian and Western governments and some international rights groups. Read More
Freed Ukrainian pilot Nadio Savchenko said she was prepared to continue fighting for her country. After nearly two years of imprisonment, she was released by Russia on May 25 in a prisoner exchange. Savchenko was swapped for two Russians who had been captured in eastern Ukraine while fighting alongside Russia-backed separatists. Speaking next to Ukrainian President Petro Poroshenko, Savchenko thanked her family and others who fought for her release. (RFE/RL's Ukrainian Service)