This was announced by the presidential aide Hikmet Hajiyev.
"Martial law has been declared in the country by the decree of President Ilham Aliyev," the APA news agency reported.
In addition, in a number of cities and regions, from September 28, a curfew is introduced, which will operate from 21:00 (20:00 Moscow time) to 06:00 (05:00 Moscow time).
Earlier, at an emergency meeting, the Azerbaijani parliament made a decision to impose martial law and curfews in some regions of the republic.
The Armenian government also introduced martial law in the country and announced a general mobilization of the reserve in connection with the aggravation of the Nagorno-Karabakh conflict.