A 22-year-old Italian woman was fatally shot at a techno festival in Switzerland early Sunday morning. The incident involved gunfire from at least two weapons. Swiss authorities have arrested a 43-year-old man in connection with the shooting. The investigation is ongoing to determine the motive and full circumstances surrounding the death. The festival was immediately halted following the gunfire, and attendees were evacuated. Police are continuing to secure the area and gather evidence. This incident marks a rare occurrence of such violence at a Swiss music event.