Europe's largest marine aquarium, the North Sea Museum in Denmark, is leaking from two cracks and the filtration system has stopped working.
The damage occured last night when a fire broke out in the aquarium, which caused the 45cm/18" thick glass to crack in two places. The water from the 1.2-million gallon tank has been pouring out of the tank ever since, flooding the cellars below.
According to Ananova, the fate of 5000 marine fish in the tank is not known, but the pipes which run the filtration system have been damaged. These are thought to be air pipes used to maintain high dissolved oxygen levels in the tank.