Joint work is being done based on outcomes of negotiations between Russian President Vladimir Putin, German Chancellor Angela Merkel, and French President Francois Hollande to draw up a joint document on settling the conflict in Ukraine, which would include Putin's and Ukrainian President Petro Poroshenko's proposals, Kremlin spokesman Dmitry Peskov said.

"Joint work is being done at the moment to draw up the text of a possible joint document on implementing the Minsk agreements, a document that would include the Ukrainian president's proposals and proposals formulated and added today by Russian President Vladimir Putin," Peskov told journalists following the negotiations in the early hours of Saturday.

The text is supposed to be presented to all conflicting parties for endorsement, he said.

"Then the work will be continued, and its preliminary outcomes will be summed up in a top-level telephone conversation in the Normandy format on Sunday," Peskov said.

The negotiations between Putin, Hollande, and Merkel in Moscow have been completed, and the French and German leaders are currently going to the airport.

Peskov described the Friday talks between Putin, Hollande and Merkel as constructive and substantive.