British detectives working on the Madeleine McCann case are still pursuing ‘critical’ leads as the 10th anniversary of her disappearance approaches, a Scotland Yard chief has revealed. Metropolitan Police Assistant Commissioner Mark Rowley said there are ‘significant investigative avenues’ that are of ‘great interest’ to both the UK and Portuguese teams.

Officers have sifted through some 40,000 documents and looked at more than 600 individuals since 2011. In an interview nearly a decade on from the youngster’s disappearance, Mr Rowley also confirmed that four people considered as possible suspects in 2013 have been ruled out.

Asked if police were any closer to solving the case than they were six years ago when the UK investigation was launched, Mr Rowley said: ‘I know we have a significant line of enquiry which is worth pursuing, and because it’s worth pursuing it could provide an answer, but until we’ve gone through it I won’t know whether we are going to get there or not.’ However, he refused to be drawn further because of the nature of the ‘live enquiry.’