The troops attacked the protesters, firing into the crowds. The shooting continued for three days. They acted pursuant to a state of emergency, which continued for more than four months afterward, declared by the Presidium of the Supreme Soviet of the USSR, signed by Chairman Mikhail Gorbachev. The state of emergency was, however, disclosed to the Azerbaijani public only several hours after the beginning of the offensive, when many citizens already lay dead or wounded in the streets, hospitals and morgues of Baku.