A senior Metropolitan Police detective will take over the investigation into the disappearance of Madeleine McCann from Rothley in Leicestershire today.
DCI Nicola Wall succeeds Andy Redwood, who has been leading the inquiry in Portugal and is now retiring.
Madeleine went missing from a holiday apartment in 2007.
A new detective has taken over the investigation into the disappearance of Madeleine McCann.
Detective Chief Inspector Nicola Wall has replaced Detective Chief Inspector Andy Redwood, who is retiring.
Mr Redwood has led Operation Grange since it was launched in 2011, while Ms Wall was with the homicide and major crime command, the Metropolitan Police said.
The identities of six of the 11 potential witnesses being interviewed in Portugal over missing Madeleine McCann have yet to be made public.
Those we do know include Robert Murat, a Brit who was the first person to be declared a suspect but was never arrested or charged, his wife Michaela Walczuch and her ex-husband Luis Antonio.
Joaquim Marques was today interviewed for the third time while British police sat in.
While Mario Marreiros, who worked at the Ocean Club hotel where Madeleine's family were staying, claims he saw a man acting suspiciously.
ITV News reporter Rebecca Barry has this report:
Some 11 people "will be interviewed as witnesses" by the police searching for missing Madeleine McCann, Good Morning Britain heard.
British and Portuguese "men and women" are expected to be quizzed by the police over what happened to the missing youngster.
British police are expected to arrive in Portugal today to question a number of people over the disappearance of Madeleine McCann.
The three-year-old, from Rothley in Leicestershire, went missing from a holiday apartment in Praia da Luz in Portugal in 2007.
Scotland Yard detectives will be expected to interview Robert Murat, who was arrested as part of the Portuguese police investigation into her disappearance at the time.
As well as questioning seven suspects, four other people will be interviewed as potential witnesses.
British police travelled to Portugal over the summer and spent eight days searching three areas of Praia da Luz, but found no new evidence.
Police are due to arrive in Portugal today to interview seven suspects over the disappearance of Madeleine McCann.
Madeleine, from Rothley in Leicestershire, went missing from a holiday apartment in Praia da Luz in Portugal in 2007, nine days before her fourth birthday.
Scotland Yard detectives will be expected to interview Robert Murat - who was arrested as part of the Portugese police investigation into her disappearance in 2007.
Mr Murat has always denied any involvement.
As well as the seven suspects, four others will be interviewed as potential witnesses.
British officers spent eight days searching three areas of Praia da Luz this summer but found no new evidence.
Eleven people are to be questioned over the disappearance of Madeleine McCann in a fresh investigation by British police.
They include seven potential suspects and four who will be spoken to as witnesses.
British ex-pat Robert Murat, who was the first "person of interest" when three-year went missing in Portugal seven years ago, is one of those police want to re-interview.
His wife, Michaela Walczuck, and her former husband, Luis Antonio, are also understood to be on a list of people identified to give statements to the inquiry run by British police.
The parents of missing Leicestershire girl Madeleine McCann have won £55,000 in libel damages from the Sunday Times over a story which suggested that they had kept evidence from authorities investigating their daughter's disappearance.
Kate and Gerry McCann took action over a front-page article by the newspaper which appeared in October last year.
The McCann's said they would be giving the money to two charities.
The Sunday Times has also agreed to pay the McCanns' legal costs.
British authorities competing to be involved in the search for Madeleine McCann alienated Portuguese forces, according to a previously unpublished report from 2009.
The report by Jim Gamble, former head of the Child Exploitation and Online Protection Centre (CEOP), found so many different UK agencies getting involved damaged relations with Portuguese police.
The report was commissioned by the then Home Secretary Alan Johnson in 2009, and was delivered in 2010. But details of the report were briefed to Sky News today.
Madeleine, from Rothley in Leicestershire, went missing from a holiday apartment in Praia de Luz in Portugal in 2007.
More to follow...