No need for panic as sirens fill the air
Don't panic if you hear the sound of sirens around noon on Saturday.
You can stay calm when over 1,400 air-raid sirens fill the air across the city as they mark National Defense Education Day.
The sirens will be running from 11:35am to 11:58am at three-minute intervals, in the order of early warning, air-raid alarm and all-clear.
Air defense drills will also be carried out in each district to raise public awareness.