The British broadcaster was found to have committed a "serious breach" of media regulations by failing to disclose that the presenter of a documentary about the Gaza situation was the child of a Hamas administrator, as ruled by UK media regulator Ofcom.
An inquiry by the media regulator into Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The head of the BBC had already issued an apology, saying there had been "a significant failing in relation to accuracy".
The regulator has directed the BBC to air a peak-time statement about its decisions.
"Given this constitutes a serious breach of our regulations, we are ordering the corporation to air a statement of our findings against it on BBC2 at nine o'clock in the evening, with a date to be confirmed," it said.
'Possibility to Erode Credibility'
The authority's report said: "Our probe determined that the programme's lack of disclosure that the narrator's parent held a role in the Hamas-administered administration was significantly deceptive.
"It meant that the public did not have critical information which may have been very significant to their judgment of the narrator and the content he provided.
"Trust is at the heart of the bond between a media organization and its audience, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to erode the exceptionally strong levels of trust that viewers would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was withdrawn from iPlayer in February after the narrator's personal associations came to light, and in July an broadcaster's internal assessment concluded it breached the broadcaster's editorial guidelines on truthfulness.
A corporation official stated: "The regulator's decision is in line with the findings of the internal assessment, 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 authority's broadcasting regulations.
"We expressed regret for this and we comply with the authority's determination in complete. We will adhere to the sanction as soon as the schedule and wording are confirmed."
