The Organization for Security and Cooperation in Europe (OSCE) Special Monitoring Mission to Ukraine says it successfully tested a drone in eastern Ukraine.
The unarmed drone will reportedly be among three used to observe the shaky cease-fire between government forces and pro-Russian separatists in eastern Ukraine.
The Austrian-built drone was tested on October 23 near the port city of Mariupol, near the conflict zone in the Donetsk region.
The OSCE has received two drones and is expecting a third one for use in recording truce violations and monitoring the general security situation in eastern Ukraine, where the two sides have been fighting for six months.
Routine flights by the drones are expected to begin on October 24.
The September cease-fire agreement ended most hostilities in a conflict that has claimed more than 3,700 lives.