Copenhagen's historic stock exchange building caught fire, engulfing the 17th-century landmark and causing its iconic 54-meter spire to collapse.
The blaze erupted at around 7:30 am (0530 GMT), sending plumes of smoke billowing across the city centre.
According to a video spotted on AFP X handle by RocketParrot, flames consumed the building's exterior causing the fall of the spire.
"This is our Notre Dame! This is a national treasure," local resident, 45-year-old Elisabeth Moltke, told AFP as she watched the blaze. Other witnesses watched in tears as more than 100 firefighters battled to save the building.
"A lot of old Danish paintings, originals are in there. I've been in there several times and it's a magnificent building so it makes me feel very emotional," added Moltke.
While no casualties have been reported, the extent of the fire damage to the building itself remains unclear and the cause of the fire still is not stated.
As of press time, authorities are yet to comment on the incident but police said they had blocked off parts of the city centre as part of the fire-fighting efforts.
WATCH VIDEO HERE