Kidnap victim Natascha Kampusch memoirs on sale

The Austrian teenager who was locked in a cellar for eight and a half years has revealed details of the "psychological prison" she experienced at the hands of her captor.

In her memoirs, 3096 days, Natascha Kampusch says she believes her captor was motivated less by sex than by "wanting something to cuddle".

Bethany Bell reports from Vienna.