KIEV, Aug. 19 - President Petro Poroshenko plans to travel to Berlin late on Monday, August 24, to take part in trilateral negotiations with French President Francois Hollande and German Chancellor Angela Merkel, a Ukrainian diplomatic source told Interfax.

"Following all events related to the celebration of Independence Day in Ukraine, the president will depart for negotiations in Berlin in the second half of the day," the source said on Tuesday evening.