No Ukrainian servicemen have been killed, but one soldier has been wounded in the Ukrainian army operation area in the country's eastern regions over the past 24 hours, Ukrainian presidential administration spokesman Andriy Lysenko has said.

In the Luhansk region, militants opened fire near the village of Triokhizbenka, which is located north of the Bakhmutka motorway, Lysenko told a press briefing in Kyiv on Thursday. Two projectiles were fired there using 82mm mortars.

Fighting involving small arms and grenade launchers was under way south of Horlivka and on the western outskirts of Donetsk in the Donetsk region on Wednesday, he said.

"Random and disturbing gunfire was recorded in the direction of positions of anti-terrorist operation forces," Lysenko said.