Police officers detain a man participating in a protest demanding the resignation of Armenian Prime Minister Nikol Pashinyan amid the recent escalation in Nagorno-Karabakh, in Republic Square in Yerevan, Armenia. On September 19, Azerbaijan launched an "anti-terrorist operation" in Nagorno-Karabakh to restore constitutional order, targeting local forces with high-precision weapons. Armenia described the operation launched against the Armenian-majority region as aggression.