The Kremlin says Russian President Vladimir Putin talked on the telephone with his Ukrainian counterpart Petro Poroshenko on June 12, Interfax reports.
Putin spokesman Dmitry Peskov said Poroshenko "informed Vladimir Putin about his plan to settle the situation in southeastern Ukraine."
Peskov added that the two leaders also discussed "issues of bilateral relations."
No further details were immediately available.
Earlier on June 12, Russian Foreign Minister Sergei Lavrov said Moscow was getting "increasingly” concerned by the lack of “any progress whatever” in efforts to stop the violence in eastern Ukraine.
Lavrov called for an immediate investigation into the alleged use of "indiscriminatory weapons," such as incendiary bombs, by Ukrainian military forces.
Lavrov added that Russia is presenting to the United Nations Security Council a draft resolution on the situation in Ukraine that calls on the Ukrainian government to start implementing the OSCE road map for resolving the crisis.