A Ukrainian brigade, identified as the 66th Mechanized Brigade named after Prince Mstyslav the Brave, reportedly conducted Operation Vivaldi to liberate the settlement of Seredne. According to the report, the brigade suppressed Russian firing positions and eliminated enemy personnel.

The report claims the operation was meticulously planned and multi-stage, resulting in the suppression of Russian forces and the liberation of the settlement. It also states that the operation was completed without any losses on the Ukrainian side.