Within hours, Armenia's foreign ministry issued a statement expressing willingness to resolve disputes with Azerbaijan over the territory, focal point of two wars in the past 30 years.
Azerbaijan's foreign ministry, in a series of statements, said it was Armenia which was posing a threat to regional stability by abetting separatism in Nagorno-Karabakh.
"Armenia pursues one goal: to sustain separatism in the territory of Azerbaijan through all possible ideological, political, military, financial and other means," the Azeri Foreign Ministry said.
Armenia and Azerbaijan accused each other on Thursday of moving troops close to their joint border.
Armenia hosts a Russian military base and relies almost entirely on Russia for defence supplies.
Persons:
Vladimir Putin, Nikol Pashinyan, Ilham Aliyev, Kevin Liffey, William Maclean, Mark Heinrich, Ron Popeski, Richard Chang
Organizations:
Azeri Foreign Ministry, International Criminal Court, Collective Security, Organization, Reuters, Red, Thomson
Locations:
Russia, South Caucasus, Nagorno, Karabakh, Azerbaijan, Armenia, United States, Ukraine, Russian, Moscow, Soviet Union, Soviet, Caucasus