SBU says unlikely Savchenko will be exchanged for Russian servicemen Yerofeyev, Alexandrov

Yuriy Tandyt, an advisor to the chief of Ukraine's Security Service, or SBU, expressed doubts that it is possible to exchange Ukrainian pilot Nadia Savchenko, a member of the Ukrainian parliament, who has been recently sentenced by a Russian court to 22 years in prison, for Russian intelligence officers Yevgeny Yerofeyev and Alexander Alexandrov, whose trial is about to end in Ukraine.