A criminal investigation has been launched in Switzerland concerning the deaths resulting from a fire at a ski resort bar. Preliminary findings indicate that the fire was likely caused by sparklers attached to champagne bottles that were carried close to the ceiling, igniting combustible materials. The incident underscores safety challenges in hospitality venues situated in high-altitude areas where fire control measures may vary. Authorities are examining the circumstances leading to the use of sparklers indoors, evaluating compliance with safety regulations, and assessing whether negligence contributed to the tragedy. The investigation aims to determine responsibilities and possible legal actions related to the event, which resulted in fatalities and injuries among visitors and staff. Such incidents highlight the importance of strict adherence to fire safety protocols, especially in venues hosting celebratory activities where decorative elements like sparklers are used. Further updates from investigative authorities are awaited to clarify the sequence of events and to inform future safety recommendations for similar establishments.