Housing estate refuses to come down without a struggle

Lower Ngau Tau Kok Estate may have been built more than 40 years ago, but its designers used what one engineer describes as 'a very modern approach'.

It is this approach that is posing a challenge to the workers who are now pulling it down.

Five of the seven 16-floor buildings were made with prefabricated components.

And instead of being able to simply crush the concrete, the workers are having to remove these components piece by piece.

Engineers have to check how the components were put together and workers have to cut the cables that attach the pieces to one another.

Holes are then drilled in the components and tower cranes are used to take them away.