Escalation of the Nagorno-Karabakh conflict could lead to a major conflict in the Caucasus region, the secretary general of the Russian-led Collective Security Treaty Organization (CSTO) told Sputnik Serbia on Tuesday.

“This [escalation] threatens with the outbreak of a very big conflict in the Caucasus region that’s why the leaders, first of all of Azerbaijan, should understand it,” Nikolay Bordyuzha said.

He added that the CSTO was participating in the settlement of the conflict by political means.

“Today we should take all the necessary measures to prevent the conflict from growing, to stop it, to stop warfare, bombardments,” Bordyuzha said.