Fresh clashes broke out Tuesday between Armenia and Azerbaijan, with each side reporting casualties and blaming the other for the violence.
Armenia said Azerbaijani forces attacked several points near the border, killing 49 Armenian soldiers.
Azerbaijan said Armenian forces fired on its positions, leaving an unspecified number of casualties.
The two countries have had a decades-long conflict involving the Nagorno-Karabakh region, which is inside Azerbaijan but populated mainly by ethnic Armenians.
A six-week war in 2020 killed more than 6,600 people and saw Azerbaijan reclaim territory in and around the region.
U.S. Secretary of State Antony Blinken called on the two sides to “end any military hostilities immediately,” saying in a statement that there is no military solution to the conflict.
Russia’s Foreign Ministry also urged Armenia and Azerbaijan to resolve the conflict through political and diplomatic means.
Some information for this report came from The Associated Press, Agence France-Presse and Reuters.