The public service broadcaster engaged in a "serious breach" of broadcasting rules by not revealing that the voice of a film about Gaza was the child of a Hamas administrator, according to UK media regulator Ofcom.
An inquiry by the media regulator into the documentary titled Gaza: How to Survive a Warzone has found that the documentary was "materially misleading".
The chief executive of the broadcaster had previously apologised, noting there had been "a serious error in relation to accuracy".
The regulator has ordered the corporation to air a evening announcement about its conclusions.
"Since this amounts to a significant violation of our regulations, we are ordering the corporation to broadcast a statement of our determinations against it on BBC2 at 21:00, with a timing to be determined," the regulator stated.
'Possibility to Damage Credibility'
The regulator's statement declared: "Our probe determined that the programme's lack of disclosure that the presenter's father served in a post in the Hamas-administered administration was materially misleading.
"Consequently that the public did not have critical information which may have been extremely pertinent to their evaluation of the narrator and the content he shared.
"Confidence is at the center of the connection between a media organization and its viewers, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This error had the risk to damage the very considerable levels of credibility that viewers would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The programme was withdrawn from the online platform in February after the presenter's personal associations were revealed, and in July an broadcaster's internal assessment found it violated the broadcaster's content policies on truthfulness.
A representative for the broadcaster stated: "The authority's determination is in line with the findings of the internal assessment, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on accuracy, which aligns with regulation 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with Ofcom's decision in full. We will adhere to the directive as soon as the timing and wording are finalised."
