Katrice Lee family in Downing Street 'justice' march

The family of a two-year-old girl who disappeared from a British military base 31 years ago are marching to Downing Street to try to "get justice".

Katrice Lee disappeared from a shop in Paderborn, the German military base where her father Richard, from Hartlepool, was stationed.

The family are taking part in a march to try to get the 1981 case files released for an independent review.

Katrice's sister Natasha said it was an "emotional day" for the family.