The leaders of Russia, Germany and Ukraine have had a telephone conversation to discuss a set of measures for a peace settlement in southeastern Ukraine, German government spokesman Steffen Seibert said.
"The parties to the negotiations have agreed concrete steps to allow the OSCE to monitor the shaky ceasefire in eastern Ukraine," Tass cited him as saying.
"The withdrawal of weapons should begin on Tuesday, as was stipulated in Minsk," Seibert said.
