British Defence Intelligence releases latest update on situation in Ukraine 

Despite Russian forces having encircled Mariupol for over ten weeks, staunch Ukrainian resistance delayed Russia's ability to gain full control over the city, the UK Defence Ministry wrote on Twitter, Report informs.

"This frustrated its early attempts to capture a key city and inflicted costly personnel losses amongst Russian forces," the ministry tweeted. "In attempting to overcome Ukrainian resistance, Russia has made significant use of auxiliary personnel. This includes deployment of Chechen forces, likely consisting of several thousand fighters primarily concentrated in the Mariupol and Luhansk sectors."

The ministry noted that these forces likely consist of both individual volunteers and National Guard units, which are routinely dedicated to securing the rule of Chechen Republic Head, Ramazan Kadyrov: "Kadyrov likely maintains close personal oversight of the deployment, while his cousin Adam Delimkhanov has likely acted as the Chechen field commander in Mariupol. The combat deployment of such disparate personnel demonstrates Russia's significant resourcing problems in Ukraine and is likely contributing to a disunited command which continues to hamper Russia's operations."