"We will continue to push the government in Kyiv for certain, and they have obligations and they need to live up to their obligations," Kerry said.
Assistant Secretary Victoria Nuland has worked closely with Ukrainian President Petro Poroshenko, the Ukrainian legislature and various members of civil society to push Kiev "to make sure it deals with the problems of Donbas," Kerry said.
The Minsk ceasefire accord, adopted in February, calls for Ukrainian national constitutional reforms granting special status to Luhansk and Donetsk regions and local elections in east Ukraine to be held by the end of 2015.
"But at the same time, Russia also needs to exert its considerable influence over the separatists and make sure that they are living up to the agreements of Minsk," Kerry told Brilev, underscoring that Washington deals "very actively with both sides."
Ukraine, Russia, France and Germany reached the Minsk agreement nearly a year after Kiev launched a military offensive against eastern Ukrainian militias who refused to recognize new leadership they identify as imposed by a coup.
