Iranian drones in Crimea: This is how Russia wants to protect its Black Sea fleet. The Iranian Mohajer-6, an unmanned aerial vehicle, is capable of conducting reconnaissance missions and carrying up to 40 kilograms of load.
The drones are powered by Rotax aircraft engines. This sparked controversy early in the conflict, as BRP-Rotax is an Austrian company and apparently supplied Iran with the engines. The company assured that all exports to Russia have been stopped for the time being.