Five Ukrainian soldiers were killed in the southeast on Monday, the anti-terrorist operation (ATO) spokesman, Vladyslav Selezniov, wrote on Facebook on Tuesday morning.

He reported shelling of Donetsk airport and ATO positions near Orlovo-Ivanivka, Komyshuvakha, Trekhizbenka and Sokolnyky, and Luhansk thermal power plant near the village of Schastia.

Ukrainian military returned fire and suppressed the fire nests of the militants, Selezniov said.

"Five Ukrainian soldiers were killed and eight suffered injuries of varying degrees in shelling incidents and booby traps over the past day," he added.