The prime suspect in the search, Christian Brueckner, is said to have visited the Portugal reservoir “some days” after Madeleine McCann disappeared, a source close to the investigation revealed. It comes as divers searching for Madeleine entered the reservoir in Algarve for the third day. German detectives were informed by a “very credible source” who knew the suspect, The Telegraph reported. The Barragem do Arade is around 31 miles from the Praia da Luz resort where Maddy disappeared. Investigators believe the 45-year-old killed Madeleine, then aged three, after abducting her from a holiday apartment. On Tuesday, officers acting on “credible information” were said to be seeking any fragments of clothing and old rags that could be related to her disappearance, as reported by the Daily Mail. The development comes just 10 days after Madeleine’s parents, Kate and Gerry McCann, issued a tribute on their Leicestershire-born daughter’s 20th birthday, telling her: “We love you and we’re waiting for you. We’re never going to give up.” Read More Madeleine McCann police cut down trees as they search suspect’s ‘little paradise’ in Portugal Madeleine McCann reservoir search: What do we know about Portugal’s Barragem do Arade? Madeleine McCann case: Timeline of the missing child’s disappearance