KIEV, June 3 – About 20 heads of state and government have confirmed their participation in the inauguration ceremony of the newly elected president of Ukraine, Petro Poroshenko, scheduled for June 7, Ukraine's Foreign Ministry reported.

"As of today we have the confirmation of the participation of some 20 foreign heads of states and governments," the Foreign Ministry's spokesman, Yevhen Perebyinis, said at a press briefing on Tuesday.