MOSCOW, June 14. /TASS/. Moscow does not reject a possible direct contact between Russian President Vladimir Putin and his Ukrainian counterpart Vladimir Zelensky but this requires thorough preparations, Kremlin Aide Yury Ushakov said on Tuesday.

"No one rejects this possibility but it requires the corresponding conditions and, importantly, very thorough preparations. No one will meet with Zelensky without this just for any purpose," Ushakov said.

The Russia-Ukraine negotiations have been ongoing since February 28. Several meetings took place in Belarus, following which the sides continued their talks via a video link-up. A face-to-face round was held in Istanbul, Turkey on March 29.

Russian President Putin told reporters on April 12 that Kiev had departed from the accords reached in Turkey and brought this process to a deadlock. Kremlin Spokesman Dmitry Peskov said on April 20 that Moscow had handed over to Kiev its draft document on agreements with clear-cut formulations and expected a reply. The Russian and Ukrainian leaders did not meet during the negotiating process.