A massive fire broke out at a Denver apartment complex under construction, prompting a major emergency response with over 100 firefighters battling the blaze. The fire, described as the largest in 30 years in the city, spanned an entire city block, causing significant damage and triggering power outages. Evacuations were ordered in the surrounding area as residents returned home to find their neighborhoods filled with smoke. One firefighter was reported injured during the chaos, and portions of the building collapsed under the intense heat. Crews are expected to continue their efforts to extinguish the flames and assess the situation through the weekend.