The hypothesis points to the use of flares in champagne bottles as the cause of the fire in Crans-Montana.
The event left forty dead and more than a hundred injured, 80 of them in critical condition.
Evidence suggests a pattern of pyrotechnic materials used near the ceiling of a closed place with limited evacuation routes.
Swiss prosecution is investigating the conditions of the place, including the emergency exits and materials used.
The disaster underscores the need for greater responsibility and care in organizing festive events to prevent similar tragedies.
Conclusion: The tragedy underscores the importance of reviewing protocols, banning dangerous practices, intensifying inspections, and demanding certifications and training for personnel at festive events to ensure everyone's safety.