Mariupol sea guard spotted the unmanned aerial vehicle (UAV) which was operating 3 km offshore.
Ukraine's border service reported seizing a Russian UAV which was drifting in the Sea of Azov.
The drone "Orlan-10" is a multi-functional unmanned aircraft and was produced in Russia. The aircraft can reach an altitude of 5 kilometers and travel 120 kilometers away from its ground control station.
The Mariupol sea guard spotted it 3 kilometers out at sea during regular monitoring of the area.
Currently, the device is being examined by experts in order to retrieve further information about it.