A German government spokesman said Merkel made the remarks in a Wednesday phone call with Putin, RFE/RL reported.
Earlier, the Kremlin said Merkel and Putin had agreed on a schedule for future contacts about Ukraine's conflict under a format that would bring together the leaders of Ukraine, Russia, Germany, and France.
Read alsoAerial recon shows military hardware of Russian-terrorist forces in DonetskThe Kremlin statement said the two discussed the conflict in eastern Ukraine within the framework of "reactivating work for a full implementation of the Minsk agreements."
The German government spokesman said Merkel had urged Putin to continue to implement the Minsk peace accord of 2015, which is designed to end the conflict between Ukrainian government forces and Russia-backed separatists in eastern Ukraine.
