However, according to Shkiriak, the militants have serious problems with manpower because they are suffering huge losses in killed and wounded.

"Since the events in the town of Maryinka, the militants have lost more than 400 people dead and about 800 wounded. There is a real ‘full house’ in the morgues and hospitals of Donetsk and Luhansk. They are lying everywhere, even in emergency rooms on the floor. No treatment, unsanitary conditions, desperation and chaos," Shkiriak said.

According to Shkiriak, the Russian authorities may again use regular units in order to break further into Ukrainian territory along several parts of the front line.

"Over 10,000 regular soldiers of the Russian army are now on the territory of Ukraine. Most likely, they will hit [in the areas of] Shyrokyne and Lebedynske, Maryinka and Artemivsk, and Stanytsia Luhanska and Shastya," the report says.

As UNIAN reported earlier, observers from the Ukrainian side of the Joint Center for Control and Coordination on the ceasefire and stabilization of demarcation line (set up under the Minsk accords to monitor the “ceasefire” in Ukraine) continues to record daily dozens of attacks by Russian-backed militants on the positions of Ukrainian troops.

The situation is still at its most tense in the area of Donetsk and Avdiyivka.