Police search reservoir in Portugal at request of German authorities for missing toddler Madeleine McCann; no clues found.

Portuguese police aided by German and British colleagues resumed their search for Madeleine McCann, a British child who disappeared in Portugal's southern Algarve region 16 years ago.
The search took place near the Arade dam, about 30 miles from Praia da Luz, where the 3-year-old was last seen alive in 2007.
A 45-year-old German citizen, identified as Christian Brueckner, who was in the Algarve in 2007, is a suspect in the case but has denied any involvement.
Madeleine's disappearance stirred worldwide interest for several years, with reported sightings of her stretching as far away as Australia, along with a slew of books and television documentaries about the case.
No useful clues were found during the search, and the collected material will be handed over to German authorities after safeguarding the interests of the investigation still ongoing in Portugal.