BOLU The devastating hotel fire at a renowned ski resort in the northwestern province of Bolu , which has profoundly shaken Türkiye, remains under investigation as authorities attempt to pinpoint its origin. Initial reports suggested that sparks ignited on the fourth-floor restaurant of the 12-story structure, whose exterior cladding — composed of wood — facilitated the rapid spread of the blaze. The Grand Kartal Hotel, where the fire erupted, stands as one of the most iconic and historically