Overview
- The blast struck around 1:30 a.m. local time at Le Constellation, reportedly starting in the basement and sparking a major fire.
- Valais police confirmed multiple deaths and many injuries, noting that more than 100 people were inside the venue.
- A large rescue operation deployed fire crews, ambulances and Air-Glaciers/Rega helicopters, with a helpline and a reception centre set up for families.
- Hospitals across French-speaking Switzerland faced a surge of severe burn cases, according to a Rega air-rescue doctor quoted by RTS.
- Authorities scheduled a 10:00 a.m. local news conference as investigators probe possible accidental origins and review unverified videos, including suggestions of fireworks.