MOSCOW, June 27 (Reuters) - Ukrainian President Petro Poroshenko told European Union leaders on Friday he was extending a ceasefire in east Ukraine for three days, Russia's Itar-Tass news agency quoted an unnamed European diplomatic source as saying.
The ceasefire, between Ukrainian government forces and pro-Russian separatist rebels, had been due to end late on Friday.
(Reportign by Katya Golubkova, Writing by Gabriela Baczynska, Editing by Timothy Heritage)