ArmInfo.Nikolai Patrushev, Secretary of the Russian Security Council, has arrived in Yerevan, an official report reads.
In Yerevan, Nikolai Patrushev will participate in the joint session of the Council of Foreign Ministers, the Council of Defense Ministers, and the Committee of Secretaries of the CSTO Security Councils.
The session will take place before a summit the same day, with Russian President Vladimir Putin's participation.