Russian forces advance 'slowly and unevenly' in Donbas due to Ukrainian resistance and ongoing logistical problems.

This was announced by a senior Pentagon official, writes CNN.

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Russia now has 92 battalion tactical groups in Ukraine, up from 85 last week, he said..

However, the official also noted that " Because they don't want to get too far away from their logistics forces..

Russia is advancing east and south of Izyum but is facing resistance from Ukrainian forces, official says.

In southern Ukraine, the U.S. is watching individual Russian units leave besieged Mariupol and head northwest towards Zaporozhye, despite the fact that Mariupol has not yet been completely taken by Russian troops.

The official also said that since the beginning of the February invasion, Russia has launched more than 1,900 missiles against Ukraine..

Russian forces still face "

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