Vuhlehirsk (near Debaltseve) is partially controlled by the Ukrainian forces, Andriy Lysenko, a spokesman for the anti-terrorist operation, said.

Citing the most recent information, Lysenko said that part of the city is controlled by militants and that the Ukrainian troops remained in some positions.

"In addition, there is fire support, which is maintained by our artillery," Lysenko told a briefing in Kyiv on Wednesday.

Lysenko said several attacks on Ukrainian forces had been fought off last night.