The format, time and place of a meeting of Ukrainian President Petro Poroshenko with U.S. President Barack Obama on the sidelines of the 70th session of the UN General Assembly is being discussed at the moment, the Ukrainian presidential administration has reported.

"The holding of meeting with President Barack Obama is being discussed at the moment," Deputy Head of Presidential Administration Kostiantyn Yeliseyev said at a briefing in Kyiv on September 18.