At around 11am on Monday, a warning message and sound will be transmitted to all mobile phones on Luxembourgish territory. This is a test and there is no need to react.
The alarm will sound on all devices whether they are on silent mode or locked. It is usually accompanied by vibrations, and will cease after several seconds.
In addition, as on every first Monday of the month, the national warning sirens will also be tested.
Further information can be found at lu-alert.lu.
