"The declaration has been agreed," the source said.

Read alsoJuncker on EU-Ukraine relations: Moving in the right directionAs UNIAN reported, there were disagreements during debates on the final document of the summit that could be resolved only at the highest level, i.e. at the level of the heads of state and government.

As expected, Ukrainian President Petro Poroshenko held a series of meetings, during which the final declaration was discussed among other issues.