"Russia needs to make its choices and those choices are not just declared by words, they have to be declared by actions. That means engaging in a series of steps that will uphold the Minsk agreement that they signed up to," he said.
"We want a diplomatic solution but we cannot close our eyes to tanks that are crossing the border from Russia and coming into Ukraine. We cannot close our eyes to Russian fighters in unmarked uniforms crossing the border, and leading individual companies of so-called separatists in battle", Kerry said.
"We are not seeking a confrontation with Russia. No one is. Not Poroshenko, not the United States, not the European community," Kerry said. "We are very hopeful that Russia will take advantage of our broad-based, uniform acceptance of the notion that there is a diplomatic solution staring everybody in the face. That is what we want,” he noted.