NATO is concerned over the escalation of tension on the contact line between the Nagorno Karabakh Republic and Azerbaijan, NATO Secretary General’s Special Representative for the Caucasus and Central Asia said.

“We are gravely concerned by the reported large-scale ceasefire violations that are taking place along the line of contact in the Nagorno Karabakh conflict zone. We call on all sides to stop shooting and take all necessary measures to stabilise the situation on the ground,” James Appathurai said in his Facebook post.