The British broadcaster committed a "major breach" of broadcasting rules by omitting to mention that the narrator of a film about Gaza was the son of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The head of the BBC had previously apologised, stating there had been "a serious error in relation to accuracy".
The regulator has instructed the corporation to broadcast a peak-time announcement about its conclusions.
"Given this constitutes a major infringement of our code, we are directing the BBC to broadcast a message of our determinations against it on BBC Two at nine o'clock in the evening, with a date to be finalised," the statement read.
'Possibility to Undermine Trust'
The authority's announcement said: "The inquiry we conducted concluded that the film's lack of disclosure that the presenter's parent occupied a role in the Hamas-run administration was substantially inaccurate.
"This implied that the audience did not have essential details which may have been extremely pertinent to their evaluation of the presenter and the information he presented.
"Confidence is at the center of the connection between a media organization and its public, especially for a public service broadcaster such as the public broadcaster.
"This oversight had the potential to erode the very considerable amounts of trust that audiences would have placed in a BBC factual programme about the Gaza conflict."
The documentary was withdrawn from the BBC's streaming service in last February after the narrator's personal associations emerged, and in the month of July an broadcaster's internal assessment determined it breached the broadcaster's content policies on accuracy.
A corporation official said: "The Ofcom ruling is in line with the findings of the internal assessment, that there was a significant failing in the film in relation to the broadcaster's journalistic policies on accuracy, which reflects clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with the regulator's ruling in its entirety. We will adhere to the directive as soon as the schedule and language are confirmed."
