Netflix has confirmed that a controversial documentary about the disappearance of Madeleine McCann will be released on Friday, March 15.

The child's parents, Kate and Gerry McCann, have previously criticised the programme, saying it "could  potentially hinder" the ongoing investigation into their daughter's disappearance.

McCann was aged three when she vanished during a family holiday in Praia da Luz on the Algarve in Portugal in May 2007.

US streaming service Netflix said the series had access to "never-before-heard testimonies from those at the heart of the story, including friends of the McCann family, investigators working the case and from those who became the subject of media speculation and rumour".

It said: "The Disappearance Of Madeleine McCann goes beyond the headlines and takes a unique look at the facts of the case as well as its impact on media standards around the world."

Netflix commissioned the programme in 2017.

Kate and Gerry McCann previously said in a statement: "The production company told us that they were making the documentary and asked us to participate.

"We did not see - and still do not see - how this programme will help the search for Madeleine and, particularly given there is an active police investigation, it could potentially hinder it.

"Consequently, our views and preferences are not reflected in the programme."

Scotland Yard launched an investigation, Operation Grange, after a Portuguese inquiry failed to make any headway on Madeleine's disappearance.