"This morning, a total of 100-150 of about 2,000 soldiers of the 128th brigade were able to break through militant encirclement in Debaltseve and now they are in Artemivsk," the report says.

"The situation is tense, the militants are constantly shelling the Ukrainian servicemen in small groups."

"The Ukrainian military are using all survival techniques to break through the encirclement," the report reads.

As UNIAN reported earlier, the Ukrainian armed forces began withdrawing troops from Debaltseve on Wednesday.