Russian President Vladimir Putin said at a meeting with Armenian Prime Minister Nikol Pashinyan on the sidelines of the Eastern Economic Forum (EEF) that they are in constant contact on the subject of Nagorno-Karabakh, the Kremlin press service reported.

"One of the most sensitive issues is the security situation around Nagorno-Karabakh. We are constantly talking to you about this issue, we are in constant contact," the Russian president said.