"No problems were resolved. Nobody expected any problems to be solved in that meeting. But it was a beginning of a dialogue on some tough problem sets that we'll begin now to work on together," the official said.
"Importance of having a bilateral relationship with Russia" is the most important result of the contact at the top level, making possible to "work on problems together," McMaster said, TASS news agency reported.
President Donald Trump and Secretary of State Rex Tillerson gave relevant assignments after the meeting on further interaction with Russia, the official said.
"Importance of cyber security and the need to make sure that we protect election systems in the United States and in Europe and elsewhere" were among issues discussed by presidents and requiring joint elaboration, McMaster said. "So that is one of the things we're going to focus on going forward," he added.