German explosives experts in Munich have detonated an American bomb left over from the Second World War, but the force of the controlled explosion shook the city.
The resulting fire was caused by sparks from the explosion igniting straw which had been packed round the device once it was deemed impossible to defuse.
Throughout Tuesday the site was cordoned off. The bomb had been found on Monday night by construction workers.
As a bomb disposal team worked, 2,500 people were evacuated from a one kilometre area.
Witnesses said the eventual blast knocked out hundreds of windows. Later, no one was being allowed back into nearby buildings for fear of structural damage.