It is reported by RIA Novosti.
The protesters tried to demolish the gate and enter the parliament building, but were stopped by the organizers.
Earlier it was reported that the Defense Ministries of Armenia and Azerbaijan announced a violation of the ceasefire.
Later, Armenia and Azerbaijan accused each other of shelling.
The forward group of the mission of the Collective Security Treaty Organization (CSTO), headed by the Chief of the Joint Staff, will fly to Armenia on Thursday, September 15.