Russian President Vladimir Putin has held “constructive” talks with French President Francois Hollande and German Chancellor Angela Merkel on efforts to end the conflict in east Ukraine, a Kremlin spokesman says.
Dmitry Peskov said Vladimir Putin, Francois Hollande and Angela Merkel met for more than five hours.
Angela Merkel and Francois Hollande had brought to Moscow a peace proposal whose details have not been released.
Russia is accused of arming pro-Russian separatists – a claim it denies.
The Kremlin also rejects claims by Ukraine and the West that its regular troops are fighting alongside the rebels in the eastern Donetsk and Luhansk regions.
Clashes have left nearly 5,400 people dead since April 2014, the UN says.
A September ceasefire, signed in Minsk in Belarus, has failed to stop the violence. Since then the rebels have seized more ground, raising alarm in Kiev and among Ukraine’s backers.
The peace proposal Angela Merkel and Francois Hollande took to Moscow on February 6 was crafted with the Ukrainian government the day before.
After the two leaders’ discussions with Vladimir Putin, French officials told AFP they had been “constructive and substantial”.
Dmitry Peskov said work was continuing on a joint document. Further talks will be held by phone on February 7, he added.
Earlier, Francois Hollande said the aim was not just a ceasefire but a “comprehensive agreement” – although Angela Merkel said it was “totally open” whether that could be achieved.
Major questions any plan would have to address include the route of any new ceasefire line – given the rebel advances of recent weeks – how to enforce it, and the future status of the conflict zone.
Moscow is still denying any direct role in the conflict, while Kiev insists above all that Ukraine must remain united, our correspondent says.
Washington is considering Ukrainian pleas for better weaponry to fend off the rebels, raising European fears of an escalation in the conflict and spurring the latest peace bid.
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