Public warning signal

The public warning signal is a one-minute-long ascending and descending tone or a warning announcement by the authorities. The length of the ascending tone is 7 seconds.

The public warning signal means an immediate danger threatening the public. The warning is given in population centres with an outdoor alarm system and with an alarm attached to a vehicle in rural areas.

The All Clear signal is a one-minute-long monotonous signal. It is an announcement of the threat or danger having passed.

Act in the following way after you've heard the public warning signal

Proceed indoors.
Stay indoors.
Close doors, windows, ventilation holes, and air conditioning devices.
Turn on the radio and wait for instructions.
Avoid using the phone to prevent telephone lines from getting jammed.
Do not leave the areas unless urged to do so by the authorities, so as not to endanger yourself on the way.