Madeleine McCann has been missing for almost a decade and Britain’s Scotland Yard boss Sir Bernard Hogan-Howe says the hunt for her will be over if no more evidence comes forward.
Sir Hogan-Howe told LBC radio there is only one line of interest “everybody agrees is worth pursuing” but if nothing comes of it then authorities have no other leads left to go on.
“There’s been a lot of investigation time spent on this terrible case,” said Hogan-Howe.
“It’s a child who went missing, everybody wants to know if she is alive, and, if she is, where is she, and sadly if she’s dead then we need to give some comfort to the family.
“It’s needed us to carry out an investigation together with the Portuguese and other countries have been involved.”
He added: “There is a line of inquiry that remains to be concluded and it’s expected in the coming months that will happen.”
Last year the Metropoltian Police in the UK confirmed that the number of police looking for Maddie had gone from 29 to four.
Madeleine, of Rothley, Leicestershire, was three years old went she missing from her family’s Portuguese holiday apartment on 3 May 2007.
Despite a high-profile hunt, no trace of her has ever been found.