"Vladimir Putin expressed deep concern over the growing number of peaceful civilians and a sharp increase in the number of refugees from southeastern Ukraine in Russia," the Kremlin said in a statement after a telephone conversation between Putin, German Chancellor Angela Merkel and French President Francois Hollande.
"The leaders of the three countries spoke out in favour of the OSCE assuming a more active role to monitor the situation in the conflict zone," the statement said.
The latest round of phone diplomacy took place as fighting rumbled on in east Ukraine between government troops and pro-Russian rebels after Ukrainian President Petro Poroshenko renewed a military operation following a 10-day ceasefire.
Russian Foreign Minister Sergei Lavrov said today it was important to conduct the meeting as soon as possible and that it should be held in Ukraine.
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The Ukrainian foreign ministry said consultations were under way but no venue for the meeting has yet been determined.
The Russian foreign ministry separately expressed hope that the "positive results" of a crisis meeting in Berlin yesterday would convince Kiev authorities to "immediately" halt fire.