Portuguese prosecutors have declared an official suspect in the disappearance of Madeleine McCann.

Madeleine disappeared during a family holiday in Praia da Luz in 2007 at the age of three. Investigators believe she was abducted from the Algarve resort apartment the family were staying at during their holiday - her whereabouts remain unknown.

The 45-year-old suspect identified in Germany has not been charged - but has been previously named by Germain media as Christian B. - and is currently serving a prison sentence for drug offences in Germany. German authorities have made the move at request from Portuguese prosecutors in Faro.

The Metropolitan Police continue to treat Madeleine's case as a missing persons inquiry.

Madeleine's case is the most heavily reported missing person's case with multiple documentaries about her disappearance.