A fire at a bar in Crans-Montana, Switzerland, has left families desperate for news about missing loved ones. The early Thursday blaze killed 40 people and injured more than 100. Several injured remain unidentified, offering hope to some families. The fire, believed to have started from sparkling candles atop Champagne bottles, caused severe burns, complicating identification. Families have provided DNA samples to assist. Authorities are investigating safety measures at the bar. Many injured are young, and victims hail from across Europe. Swiss police said Saturday that the bodies of four victims had been identified and handed over to their families.