Drone footage shows sheer scale of Auschwitz death camp

It has been exactly 70 years since the liberation of the Nazis' Auschwitz death camp took place.

It is difficult to comprehend the horror of the Holocaust and the sheer scale of the infrastructure at the Nazi regime's death camps.

Drone footage of the most well-known camp, Auschwitz, shows how large they actually were.

ITV News Presenter Mark Austin reports: