Overview
- The blast occurred around 1:30 a.m. local time inside the Constellation Bar & Lounge in the Valais resort town.
- Police confirmed multiple fatalities and additional injuries but have not released precise casualty numbers.
- An ensuing fire was reported, with emergency crews, helicopters and ambulances responding to the scene.
- Police established a hotline to support families of those affected as forensic work continues.
- Amateur videos and local media reports are circulating, including an unconfirmed suggestion that concert pyrotechnics may have played a role.