The father of missing Madeleine McCann today vowed his family will leave "no stone unturned" in the search for their daughter.
On the eve of Madeleine's fourth birthday, Gerry McCann said he and his wife Kate were grateful for the support they have received from around the world.
Three-year-old Madeleine McCann has been missing for eight days. Image: AP.
Among that flood of goodwill was a TV appeal recorded by former England football captain David Beckham and broadcast in Spain today.
Speaking just a few metres from where his daughter was snatched eight days ago, Mr McCann said the Portuguese police are determined to find her.
Mr McCann said he had seen at first hand the resources being poured into the investigation.
He said: "We are doing absolutely everything to assist the police with their investigation and will leave no stone unturned in the search for our daughter Madeleine.
"We are very grateful for all the efforts and offers of support that we have had from home and from around the world.
"We have been moved by the enormous willingness of people to do all they can to help find Madeleine.
As we have said before, we remain positive and focused on the investigation."
Eight days after Madeleine was snatched from their Portuguese holiday apartment in the Algarve village of Praia Da Luz, police said the search will soon end.
Volunteers have been told by police, who are organising the search mission, that police teams were being stood down.
However, police are reported to have two suspects and the McCanns may have been shown pictures of them during a visit to a police station in Portimao yesterday.
Four other people, believed to be friends of the McCanns, were also questioned yesterday.
Mr McCann remained at the police station until the early hours today as officers examined their holiday complex.
The newspaper Correio da Manhaalso reported two people who had been staying at the Ocean Club apartments near the McCanns were questioned yesterday.
It said police sniffer dogs had picked up a trail from Madeleine's apartment to another one occupied by some Britons who left around the time of her disappearance.
Police were also reported to have been showing CCTV stills from a motorway service station to people in shops and bars at the nearby village of Burgau.