MOSCOW, December 23. /TASS/. Drone operators of the battle group North have conducted four successful air ramming attacks against reconnaissance copters of the Ukrainian military in the Kharkov Region, the Russian Defense Ministry said.

"UAV operators of the battle group North continue to be on round-the-clock duty in the sky over Kharkov Region and identify reconnaissance and strike drones of the Ukrainian militants. Documentary footage shows drone operators of the battle group North destroy several reconnaissance UAVs of the enemy in the air," the Defense Ministry said.

The released video shows four successful cases of air ramming of enemy quadrocopters.