This is reported by Censor.NET citing Washington Post.
The statement was made by Kerry at the Saban Forum at the Brookings Institution. "We have some disagreements about some facts about Ukraine," the diplomat said. "We agreed to share some information. We also agreed to continue the dialogue."
Earlier it was reported that Russian Foreign Minister Sergei Lavrov and John Kerry met during the Council meeting of OSCE foreign ministers in Basel and discussed de-escalation of the conflict in Donbasse.