The fact that the two met on January 10 was confirmed by Putin's press secretary Dmitriy Peskov in a comment to Russia's radio station Business FM.

Earlier, the Putin-Medvedchuk meeting on January 10 was reported by the Eurasia Daily news agency, which referred to sources at the Russian president's administration.

Russian media said the two politicians "discussed the Ukrainian agenda."

Read alsoNext prisoner swap: Ukraine may exchange 74 for 29 hostages, 103 still captive in DonbasIn particular, the agenda included the second stage of the exchange of detainees between Ukraine and the two self-proclaimed republics in Donbas, as well as the release of Ukrainian citizens who have been convicted and imprisoned in Russia.

What is more, Putin touched on prospects for deploying UN peacekeepers to Donbas and spoke about "an acceptable format" of the UN peacekeeping mission, the implementation of the Minsk peace agreements and a peaceful resolution to the conflict in the east of Ukraine in general.

As UNIAN reported earlier, the first stage was conducted on December 27, 2017. Ukraine extradited 233 individuals who were imprisoned on charges related to the Donbas war and were serving their sentences in Ukrainian prions, to militants in Donbas. In turn, 73 Ukrainians (32 prisoners of war and 41 civilians) were released by the other side.

Chief of the SBU Security Service Vasyl Hrytsak announced that the Russian-backed militants are still holding 103 Ukrainian captives, and there are dozens imprisoned in Russia.

In total, 3,215 Ukrainians have been either released or have had their whereabouts determined, however, 402 Ukrainian citizens are still listed as missing.

Medvedchuk said after the first stage of the swap that the following exchange of hostages could be carried out according to the "74-for-29" formula.