Between 50 to 1000 ethnic-Armenians could still be in Nagorno-Karabakh which came under full Azerbaijan control last month, the UN has said.
The visit by the UN followed a mass exodus of ethnic-Armenians from the territory.
Armenia is now dealing with the biggest refugee crisis it has seen for decades.
The UN mission visited the enclave on 1 October to report on the remaining population of ethnic-Armenians.
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