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Last updated: Tuesday, July 12, 2022

Here you will find the information about the air-raid siren and the use of NL-alert.

Air-raid siren

On the first Monday of the month, the government tests the air alarm at 12:00 noon, with a siren lasting about 1.5 minutes. There is nothing to worry about then, you don't have to do anything. At any other time when the sirens sound several times in a row, there is an emergency. You must then immediately go inside and close windows and doors.


Besides the air-raid siren, the NL-Alert is also used in the Netherlands. NL-Alert is the alarm message that you receive in a life- and health threatening emergency situation via your mobile phone. The message gives instructions and updates on the circumstances. On 13 June 2022, a test message will be sent across the Netherlands at 12:00. For more information about NL-Alert please visit the link below.