A new documentary called Madeleine McCann : The Hunt for the Prime Suspect, has explained that police are looking for a new person of interest.
The person is not necessarily a suspect, but they were on the other end of the phone when prime suspect Christian Brueckner made a phone call in Praia da Luz, close to where Madeleine disappeared, on the night she went missing in 2007.
Police prosecutor Hans Christian Wolters says: "We are now looking for the other person who was on the call. "We want to know what they talked about.
but we also want the other person to tell us who they were talking to. "The data shows that one phone was there, not who used it.
Read more on mirror.co.uk