Nearly half of the buildings on the site of the London 2012 Olympic Stadium have now been demolished.

Sixteen buildings have been knocked down since July, with the rest due to be demolished by the end of the year.

Work has also begun to change the ground levels across the site to create a level construction platform for the Stadium.

Some parts of the site will be lowered by nine meters, while other areas will be raised by five meters.

Around 600,000 tons of soil will be reused in other parts of the Park