British police say the timeline and version of events surrounding the disappearance of Madeleine McCann has "significantly changed", allowing them to build their most detailed reconstruction of the case yet.
London's Metropolitan Police said Sunday that investigators have been able to "place more significance" on events the night the then-3-year-old vanished from a Portuguese resort in May 2007.
Detective Chief Inspector Andy Redwood did not elaborate on what has changed in Scotland Yard's version of events.
The reconstruction and pictures of men police would like to speak to who were seen in and around the resort where Madeleine disappeared will be featured in an episode of the BBC's Crimewatch set to air Monday.
(With files from from the Associated Press)