The UN mission arrives in Nagorno-Karabakh this weekend after receiving an invitation from Azerbaijan, the first of its kind in nearly three decades.
UN spokesman Stephane Dujarric said the mission team would seek to assess the situation on the ground, identify the humanitarian needs of both those remaining and leaving, and urge everyone to respect international law.
Azerbaijan's Foreign Ministry said in a statement that it would allow the mission to be informed about the current humanitarian activities carried out by the Azerbaijani authorities in the region.
The United States has called on Baku to allow international observers into Karabakh amid Armenia's accusation that Azerbaijan is ethnically cleansing in the region, which Baku strongly denies.
The United Nations announced on Friday that it was sending a humanitarian needs assessment mission in the region as the displacement of Karabakh Armenians to Armenia continued.
This comes after Armenian separatists in the region announced on Thursday the dissolution of what they call the self-proclaimed "Republic of Artsakh", despite Azerbaijan's calls for them to stay.
Refugees and police deployment
The U.N. High Commissioner for Refugees said more than 100,<> Armenians from the disputed territory had crossed into Armenia.
Armenian authorities reported that the number of displaced people from the region to Armenia had risen to about 90,<>.
On the other hand, Al Jazeera correspondent quoted local sources in Stepanakert, the capital of Nagorno-Karabakh, as saying that Azerbaijani police began deploying in the city to fill the vacuum caused by the absence of the Karabakh authorities, who announced the dissolution of themselves.
Armenian Defence Minister Soren Babikyan said yesterday that the door was open for members of the so-called Karabakh army, which includes Armenian separatists in the region, to join the Armenian army.
For its part, the Kremlin said yesterday that the issue of concluding the peace treaty between Armenia and Azerbaijan remains important.
The Kremlin added that Moscow would discuss with Baku the future of Russian peacekeepers on the territory of Azerbaijan.
Moscow is deploying its forces on the ground to separate the two sides under the trilateral declaration of the leaders of Moscow, Baku and Yerevan, which ended the 2020 war.
Russian peacekeepers regularly patrol the Lachin Pass, the only road connecting Karabakh to Armenian territory.
Russia sponsored the negotiating track between Azerbaijan and Armenia in the 2020 war in order to reach a lasting peace agreement based on mutual recognition of each party's territorial integrity and sovereignty.
Azerbaijan announced the recapture of Karabakh after a lightning military operation carried out by its forces on September 19 and lasted about 24 hours, and Armenian separatists agreed to lay down arms and withdraw their forces from there.