Historian Sune Wadskjær Nielsen talks about the Holmen catastrophe, the explosion of a fire-stricken building on Amager in November 1951. Sea mines totalling 4.5 tonnes of explosives went off on Holmen, shattering thousands of windows across Amager and killing 16 people, 11 of them firefighters who had not been warned of the danger by the naval station's guards.
Nielsen has written a book about the disaster and looks at the years leading up to it, as well as the hours and minutes before the devastating blast.
