The public service broadcaster was found to have committed a "major breach" of media regulations by failing to disclose that the presenter of a film about the Gaza situation was the offspring of a Hamas administrator, as ruled by British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog into Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The head of the BBC had earlier expressed regret, noting there had been "a significant failing in relation to truthfulness".
Ofcom has instructed the BBC to transmit a evening statement about its decisions.
"Given this constitutes a serious breach of our regulations, we are ordering the broadcaster to broadcast a statement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be determined," it said.
'Possibility to Erode Confidence'
The regulator's announcement said: "The inquiry we conducted concluded that the documentary's lack of disclosure that the voice's father occupied a position in the Hamas-run authority was substantially inaccurate.
"This implied that the viewers did not have critical information which may have been extremely pertinent to their judgment of the presenter and the content he shared.
"Trust is at the heart of the relationship between a broadcaster and its audience, notably for a national broadcasting corporation such as the public broadcaster.
"This oversight had the possibility to undermine the significantly high amounts of trust that the public would have placed in a documentary produced by the BBC about the conflict in Gaza."
The film was removed from the online platform in last February after the narrator's family links came to light, and in this past July an internal BBC review found it breached the corporation's journalistic standards on truthfulness.
A representative for the broadcaster stated: "The Ofcom ruling is in accordance with the conclusions of the internal assessment, that there was a major oversight in the programme in relation to the BBC's Editorial Guidelines on accuracy, which aligns with Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we agree with the authority's determination in its entirety. We will follow the directive as soon as the date and wording are determined."
