From a link Brietta posted about a week or so ago:
"We still have very definite lines to pursue which is why we are keeping a dedicated team of officers working on the case.
"The Portuguese police remain the lead investigators and our team will continue to support their inquiry.
"Speaking to The Portugal News on Wednesday, a Portuguese police source said that while there are “about two or three other cases of missing children in Portugal, but we have a reasonable understanding of who might be responsible for their disappearance. However in the case of Madeleine McCann, we are yet to come up with a satisfactory explanation as to what happened to her”,
It was actually quite refreshing not to have had the anonymous "Portuguese police source" or even "sources close to the inquiry" dispensing propaganda to the media.
Based on past evidence about the deliberate inaccuracies imparted in this way ... it is probably a good idea to await official announcements from a verifiable source.