Luxembourg's Ministry of State, the Ministry of Home Affairs and the High Commission for National Protection (HCPN) have announced that a "LU-Alert" test SMS message will be sent out on Monday 7 July 2025.
As part of the government's ongoing strategy to test the LU-Alert public warning and information system, this test will include the monthly siren check and a geolocated SMS alert. The SMS messages are scheduled to be sent around 11:00 in the municipalities of Walferdange, Niederanven, Luxembourg, Sandweiler, Schuttrange and Hesperange.
Following previous tests conducted by other public authorities, this time the HCPN will send the geolocated SMS test message - simultaneously via the LU-Alert mobile application and on the website www.lu-alert.lu.
As this is a test alert, the public does not need to take any action or adopt any specific behaviour.
The authorities also recalled that the LU-Alert system does not operate on a subscription basis. All mobile devices connected to a Luxembourg mobile network antenna at the time the geolocated SMS test message is triggered will automatically receive it.
Additional information and a FAQ section are available on the LU-Alert website.
