Twenty-three people have been killed during clashes between Armenia and Azerbaijan in Nagorno-Karabakh region.
Nagorno-Karabakh region is internationally recognized as part of Azerbaijan but controlled by ethnic Armenians.
Meanwhile, Turkish President Recep Tayyip Erdogan has pledged support for Azerbaijan, urging the world community to stand with the country in its battle against invasion and cruelty.
Iran, which borders both Azerbaijan and Armenia, has also offered to broker peace talks.
UN Secretary-General Antonio Guterres has also expressed his great concern over the clashes and called for both sides to stop fighting.