Is there a 'hidden chamber' in King Tutankhamun's tomb?

Egyptian officials now say they are "90% sure" that there is a hidden chamber in King Tutankhamun's tomb.

The Antiquities Ministry said it had carried out scans to gather more information about the theory.

Some experts think any hidden chamber could belong to Queen Nefertiti.

The BBC's Orla Guerin reports from King Tutankhamun's tomb in the Valley of the Kings near Luxor in Egypt.