It is reported by LIGA.net, citing sources.
“He was personally invited by Bartholomew in a separate letter,” the source said.
As noted, the Ukrainian leader also intends to make an appeal to the clergy and the people.
Earlier, Poroshenko said that the "unifying church council" will be held on December 15 in Kiev.
He also added that Patriarch Bartholomew of Constantinople signed corresponding letters to the hierarchs of Ukrainian churches inviting him to take part in the council.