What began as a New Year’s Eve celebration turned into one of Switzerland’s worst civilian disasters in recent decades after a massive fire tore through a packed nightclub in the Alpine resort town of Crans-Montana, killing at least 47 people and injuring 115 others, officials said.
The blaze broke out around 1.30 am local time on January 1 at Le Constellation, a basement-level bar and nightclub that was hosting hundreds of mostly young revellers welcoming the arrival of 2026.
Fire spread within seconds
According to investigators and eyewitness accounts, flames rapidly spread across the low ceiling, triggering panic inside the crowded venue. Viral videos and preliminary findings suggest that highly flammable ceiling insulation played a major role in accelerating the fire.
Authorities said the situation escalated into a flashover — a phenomenon in which all combustible materials ignite almost simultaneously — turning the nightclub into an inferno within moments.
Panic and desperate escape attempts
Eyewitnesses described scenes of chaos as people rushed towards the only exit, a narrow staircase leading up from the basement. Many reportedly tried to escape through broken windows as thick smoke and fire engulfed the confined space.
Emergency services said a large number of victims suffered severe burns and smoke inhalation, overwhelming nearby hospitals in the region.
Cause under investigation
Swiss authorities said the exact cause of the fire remains under investigation but have ruled out terrorism or arson. Early accounts indicate that celebratory sparklers or candles attached to champagne bottles may have ignited flammable material on the low wooden ceiling.
Forensic teams are continuing inspections at the site to establish a definitive cause.
National mourning declared
Flags across Switzerland have been lowered to half-mast as the country observes five days of national mourning. Identification of victims is expected to take weeks due to the extent of injuries sustained in the blaze.
A reception centre and dedicated helpline have been set up to assist families seeking information about missing loved ones.
Swiss President Guy Parmelin described the tragedy as “unprecedented”, cancelling his traditional New Year’s address and urging unity and solidarity during a period of national grief.
Rescue and recovery ongoing
Authorities said investigations are continuing while hospitals remain focused on treating those injured. Officials warned that the final death toll could change as the situation develops.
The disaster has prompted renewed scrutiny of fire safety standards in entertainment venues across Switzerland, particularly those operating in enclosed or underground spaces.