The British broadcaster engaged in a "major breach" of industry standards by omitting to mention that the voice of a programme about the Gaza situation was the offspring of a Hamas official, according to UK media regulator Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The head of the BBC had previously apologised, noting there had been "a significant failing in relation to accuracy".
The authority has directed the corporation to broadcast a prime-time declaration about its conclusions.
"Since this amounts to a major infringement of our rules, we are ordering the BBC to broadcast a statement of our findings against it on the BBC's second channel at 21:00, with a date to be confirmed," the statement read.
'Possibility to Undermine Trust'
The authority's statement stated: "Our investigation determined that the film's failure to disclose that the narrator's father served in a role in the Hamas-administered administration was materially misleading.
"It meant that the viewers did not have critical information which may have been extremely pertinent to their judgment of the voice and the content he presented.
"Credibility is at the center of the bond between a television network and its audience, particularly for a public service broadcaster such as the public broadcaster.
"This failing had the possibility to damage the very considerable degrees of trust that audiences would have invested in a BBC factual programme about the Gaza conflict."
The documentary was removed from the BBC's streaming service in the month of February after the narrator's personal associations emerged, and in the month of July an internal BBC review found it violated the organization's content policies on factual correctness.
A BBC spokesperson stated: "The authority's determination is in agreement with the findings of the corporation's inquiry, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on accuracy, which corresponds to clause 2.2 of the regulator's media standards.
"We have apologised for this and we agree with Ofcom's decision in complete. We will follow the directive as soon as the schedule and wording are confirmed."
