Azerbaijan's defense ministry has denied any connection with the unmanned aircraft reportedly downed in its breakaway Nagorno-Karabakh region.

Armenian media reported Wednesday that an Azerbaijani drone was shot down in the disputed territory on September 12. Images allegedly showing the downed wreckage of the spy plane were posted on the video-sharing website YouTube the same day.

Nagorno-Karabakh is an Armenian-speaking enclave within Azerbaijan that has declared independence from Baku.

Armenia and Azerbaijan fought a war over the region after the collapse of the Soviet Union that left 35,000 people dead and displaced about 1 million others. The war ended in a ceasefire in 1994 and since then the enclave has been under the control of Armenian forces.

Tensions along the border remain high and repeated international efforts to broker a peace deal have failed.