U.S. Secretary of State John Kerry has said there is an agreement reached in addition to the Minsk Agreement itself regarding deadline for implementation of some items of this deal.

"There is an agreement reached in addition to the Minsk Agreement itself through further discussions between President Poroshenko and President Putin where they've agreed on some timelines on some of these things [Minsk Agreement]," Kerry said during his visit to France, as the U.S. Department of State Web site reported.

He also said that there will be a further meeting this Thursday in Milan, Italy at which President Poroshenko, President Putin will be present together with President Hollande and Chancellor Merkel and possibly others.

"And they will then be reviewing these requirements as well as the gas deal and other things. And I suspect the meeting in Milan will flesh out further precisely what those timetables will be and what expectations have been met or haven't been met. And we will follow up on that, obviously," he stressed.