The ceasefire in the army operation zone in Donbas has been observed for three days in a row, Ukrainian Presidential Administration spokesman Andriy Lysenko has said.

"The truce in eastern Ukraine has been exemplary observed for three days. Not a single hostile attack on the positions or a provocation happened yesterday," he said at a press briefing in Kyiv on Sunday.

Lysenko added that the militia continued to conduct aerial reconnaissance of Ukrainian army positions. One drone of the militia was seen flying on Saturday, he said.

The truce in Donbas was not breached on Saturday, the army operation press center wrote on Facebook on Sunday morning. "A complete ceasefire has been observed in the operation zone for over three days," the report said.