The Ukrainian military released a video of its drones attacking Russia's tanks with grenades on Wednesday.
The drones, a video captioned: ''Human Being'', were unmanned aircraft that were carrying a drone.
The tanks, at least one, appear to be an advanced T90 model, don't seem to try to move out of the way, and it's unknown if the crews inside were aware of the drones directly above them.
In one of the clips, the attacker's tank begins accelerating and then reversing after the impact of the grenade.
They are named after Oleksy Dovbush, an eastern European outlaw who lived in the late 18th century and is now a folk hero likened to Robin Hood in Ukraine.
There have been many drones used during the Ukraine conflict, including small commercial drones taped with artillery shells.
In addition, Russia is relying on Iran's Shahed drones, with some as explosives that fly into their targets and self-destruct.