Air raid warning sirens at noon on Monday are a planned test

The public warning sirens that will go off Monday at noon are part of a regularly scheduled test, and are not related to any military activity, like the war in Ukraine, according to an extra reminder issued by the government. All 4,278 sirens in the Netherlands are tested at noon on the first Monday of every month so that the public can recognize the sound in the event of an actual disaster. In the case of an actual emergency, sirens would sound for a longer duration, and several times in succession. In such a case, more information would be provided via radio or television from regional emergency broadcasters, or from the national NL-Alert warning system, which delivers messages directly to mobile phones and public video screens.