A Ukrainian drone unit, SBS, reportedly eliminated Russian General Grunis on September 12, 2026, in the occupied Donetsk region. This marks the seventh confirmed elimination of an officer at the brigadier general/division commander/army commander level by the drone forces.

The commander of the SBS stated that the "427th SBS Brigade 'Rarog'" was responsible for the operation. The report also references a past statement by Putin praising General Grunis, who reportedly claimed the full capture of Konstantinovka in July.