Istanbul, June 2 -- Turkish President Recep Tayyip Erdogan's official agenda for Monday has no meetings scheduled with the delegations of Russia and Ukraine, which might meet for a new round of talks in Istanbul.

Instead, Erdogan will remain in Ankara, attending an event at Etimesgut Air Base and chairing a cabinet meeting at his residence in the capital, according to a schedule of public events with his participation released by the Turkish president's office to the media.

In mid-May, Turkey hosted the first direct negotiation between Russia and Ukraine in three years, initiated by Russian President Vladimir Putin. Russia's top negotiator, Vladimir Medinsky, said that the two-hour meeting resulted in an agreement between Moscow and Kiev ...