The British broadcaster was found to have committed a "major breach" of industry standards by failing to disclose that the presenter of a programme about the Gaza situation was the child of a Hamas representative, according to UK media regulator Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "materially misleading".
The chief executive of the broadcaster had previously apologised, saying there had been "a major oversight in relation to factual correctness".
Ofcom has instructed the broadcaster to air a evening announcement about its findings.
"Given this constitutes a significant violation of our rules, we are ordering the BBC to transmit a message of our determinations against it on BBC2 at 21:00, with a schedule to be confirmed," it said.
'Possibility to Undermine Trust'
The authority's announcement declared: "The inquiry we conducted found that the film's failure to disclose that the presenter's father held a post in the Hamas-administered administration was substantially inaccurate.
"Consequently that the public did not have essential details which may have been extremely pertinent to their judgment of the narrator and the content he presented.
"Credibility is at the center of the connection between a television network and its audience, particularly for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to undermine the exceptionally strong amounts of trust that audiences would have put in a documentary produced by the BBC about the Gaza conflict."
The film was removed from the BBC's streaming service in the month of February after the narrator's family links emerged, and in the month of July an corporation's own inquiry found it violated the corporation's content policies on factual correctness.
A corporation official said: "The authority's determination is in accordance with the findings of Peter Johnston's review, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on truthfulness, which aligns with clause 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we accept the authority's determination in full. We will adhere to the sanction as soon as the date and wording are determined."
