washington will not rush into a deal with moscow. more now from matthew chance. >> reporter: after marathon talks, russia and the united states were unable to reach a final agreement. both sides reported progress on that front. the u.s. secretary of state john kerry he had long and productive talks with his russian counterpart sergei lavrov. he said he had received clarity on most steps towards renewing a syrian truce. the russian foreign minister said the two had made a number of steps forward and discussed ways of addressing humanitarian situation in syria, including aleppo, which was at the center of their discussions. russia and the united states are on the opposite sides of the war, with moscow a strong backer of bashar al assad, and washington calling on him to step down. but they have a common enemy in