Russia says secessionist Armenian troops in the Karabakh region started giving up their arms to Russian peacekeepers.

Iran welcomes agreement by Azerbaijan and Armenian-backed separatists towards prevention of hostilities in Karabakh.

​​​​​​​Azerbaijan says it has launched "anti-terrorist operations" in Karabakh, almost three years after it went to war with Armenia over the disputed mountainous region.

Armenia's Foreign Ministry accuses Azerbaijan of preparing an escalation against Yeravan via the use of an “aggressive rhetoric” aimed at undermining existing agreements between both countries, adding that Baku is preparing for genocide of Armenians in the Karabakh region.

Armenia and Azerbaijan have negotiated a ceasefire to end a flare-up of fighting that has killed 155 soldiers from both sides, a senior Armenian official said.

A ceasefire agreed between Azerbaijan and Armenia fell apart minutes later amid a flare-up in hostilities between the two estranged neighbors.

New clashes break out between Armenia and Azerbaijan along the border, leaving a number of Azeri servicemen dead.