Blaze reduces part of famed Danish building to shell

Crews work to secure the area at the Old Stock Exchange in Copenhagen
Putting out the fire was taking longer than expected due to lingering pockets of flames. -AP

Half of Denmark's Old Stock Exchange is burnt out with only outer walls remaining after flames engulfed the building and caused the roof to collapse in a devastating fire.

The blaze that ripped through the 400-year-old landmark building in Copenhagen on Tuesday, toppling its spire in a scene reminiscent of the 2019 fire at Paris' Notre-Dame Cathedral, was still burning in some hard-to-access places on Wednesday.

Roughly half the Dutch Renaissance-style building was saved, although massive damage still occurred as fire fighters had drenched it in water.

A blaze ripped through the 400-year-old landmark building in Copenhagen. (AP PHOTO)

"Everything that was once part of the storey partitions and building structures inside has been burnt away," Copenhagen fire department Operations Chief Frank Trier Mikkelsen told Reuters, referring to the part of the building worst hit.

"Only the outer walls remain, leaving an empty shell."

Putting out the fire was taking longer than expected due to lingering pockets of flames found in the rubble and the work was expected to last at least until Thursday morning.

Large containers had been installed overnight to support damaged walls and prevent the historical brickwork from collapsing, Mikkelsen said.

The building no longer houses the stock exchange but serves as the Chamber of Commerce headquarters.