Portuguese police today searched a villa up the road from where four-year-old British girl Madeleine McCann was snatched and took a British man to a police station for questioning, local television reported.
Local broadcaster SIC Noticias said a member of the family at the villa often spoke to reporters and had said Madeleine looked like his daughter in England.
Police sealed the villa for forensic tests, SIC Noticias said. The man is said to have helped Portuguese police and had acted as a translator.
The search took place as the parents of the girl kidnapped 11 days ago said they remained positive their daughter was safe and vowed to keep up the search for her.
"Until there is concrete evidence to the contrary, we believe that Madeleine is safe and being looked after and that is how we can continue in our efforts,' said Gerry McCann in a statement read to reporters today.
"We can't even consider returning home at the moment, I absolutely can't even let it enter my head," his wife, Kate, said when asked when she was considering going home.
The McCanns praised the Portuguese police for their work and thanked people for the widespread support they had received.
Celebrity donations have pushed up the reward offered for Madeleine's safe return to £2.6 million.
It was the first time Kate McCann had answered questions from the media since Madeleine was snatched from her bed on May 3 in a popular resort in the Algarve in southern Portugal, just yards from where her parents were dining in a nearby restaurant.