KIEV, Sept. 11 – Ukrainian President Petro Poroshenko and U.S. President Barack Obama will meet on the sidelines of the UN General Assembly session in New York, Ukrainian Foreign Minister Pavlo Klimkin said.

"We have been working on the president's program; there will definitely be a meeting. We do not know the exact date as of yet," Klimkin told reporters in Kiev on Friday.

Diplomats are pondering various formats of this meeting but a final decision has yet to be made, the foreign minister said.