MSB tests the Swedish warning system four times a year and always at 15.00 on a Monday.

This year it coincided with Russia's invasion of Ukraine and therefore the authority has been extra clear that it was just a test.

The honking was passed unnoticed

VMA, or important message to the public, is the outdoor alarm that is most often tested.

If the situation is sharp, the loud honking means that people should go indoors, close all doors, windows and ventilation and listen to the radio's P4, watch TV or watch Teletext.

But in Luleå, there were hardly any reactions when the horn sounded for seven seconds at a time for two minutes.

When SVT met people in town, they knew that it was just a test.

However, the war in Ukraine raises concerns among some - in the clip you hear the Luleå residents' answers.