Protesters gather in Republic Square to demand the resignation of Armenian Prime Minister Nikol Pashinyan amid the recent escalation in Nagorno-Karabakh, in Yerevan, Armenia. Azerbaijani Defence Ministry said on September 19 that Baku had launched local "anti-terrorist activities" in Nagorno-Karabakh to "restore the constitutional order" after four soldiers and two civilians died there in landmine explosions.