Ukrainian President Petro Poroshenko has reiterated that Ukraine invariably calls for ceasefire in Donbas.

"The Ukrainian side has done all it could to repel these attacks started at the end of January [in Avdiyivka]. And the whole time it has been underscoring the need for ceasefire," the president said during a videoconference with the leader of the Donetsk regional military-civilian administration, Pavlo Zhebrivsky, the president's press office said.