According to the report, the Russian Federation continued to equip the militant units in the last day.

In addition, the build-up of logistics due to supplies of weapons and military equipment, fuel and lubricants, and military equipment from the territory of the Russian Federation is under way.

Read alsoUkraine intel reports about 7,700 Russian regular troops in DonbasThe enemy also carries out winter combat training aimed at improving combat capabilities of military units.

"Another fact of the death of soldiers of the 2nd armed corps has been recorded. On December 20, near the village of Stanytsia Luhanska, four people were killed and another five were wounded after the detonation of ammunition during the unloading," the intelligence reports.