The British broadcaster committed a "significant breach" of media regulations by not revealing that the voice of a documentary about the Gaza conflict was the child of a Hamas official, according to regulatory body Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The head of the BBC had already issued an apology, saying there had been "a major oversight in relation to accuracy".
Ofcom has directed the BBC to air a peak-time declaration about its findings.
"Given this constitutes a serious breach of our code, we are ordering the corporation to transmit a announcement of our findings against it on BBC2 at 9pm, with a date to be confirmed," the statement read.
'Possibility to Erode Credibility'
The regulator's announcement stated: "Our probe found that the programme's lack of disclosure that the narrator's father held a position in the Hamas-administered administration was materially misleading.
"Consequently that the public did not have essential details which may have been extremely pertinent to their judgment of the voice and the content he presented.
"Credibility is at the center of the connection between a broadcaster and its viewers, especially for a public service broadcaster such as the public broadcaster.
"This oversight had the possibility to undermine the exceptionally strong levels of credibility that viewers would have put in a BBC factual programme about the conflict in Gaza."
The film was removed from the BBC's streaming service in the month of February after the presenter's personal associations came to light, and in the month of July an broadcaster's internal assessment found it infringed the broadcaster's editorial guidelines on factual correctness.
A representative for the broadcaster stated: "The Ofcom ruling is in accordance with the findings of the internal assessment, that there was a major oversight in the film in relation to the corporation's content standards on accuracy, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with Ofcom's decision in full. We will adhere to the sanction as soon as the schedule and wording are confirmed."
