Madeleine McCann has been missing for the past 16 years and police are now searching a reservoir after finding a clue that could crack open the case.
Police began the search on Monday after unearthing a series of photos and videos in convicted sex offender and prime suspect Christian Brueckner's "secret lair".
German police are thought to have obtained the media in a hidden area in a dilapidated factory site in the German village of Neuwegersleben, 65 miles south-east of Hanover.
