Reuters' source close to the exchange informs, Censor.NET reports.
Ukrainian Savchenko left Rostov-on-Don for Kyiv at the Ukrainian presidential aircraft. Poroshenko will make an announcement at 3:15 p.m. Kyiv time (12:15 p.m. GMT), Reuters Twitter account reports.
Earlier, media published information that President of Ukraine Petro Poroshenko has pardoned Russian GRU officers Aleksandrov and Yerofeyev, convicted in Ukraine, and that they would be exchanged for Nadiia Savchenko today.
Nadiia Savchenko's mother Mariia has also confirmed that the presidential aircraft had left for Rostov-on-Don to pick up her daughter.