The public service broadcaster engaged in a "significant breach" of broadcasting rules by not revealing that the presenter of a film about Gaza was the child of a Hamas official, as determined by regulatory body Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The head of the BBC had earlier expressed regret, stating there had been "a significant failing in relation to factual correctness".
The authority has instructed the corporation to broadcast a prime-time declaration about its decisions.
"Given this constitutes a significant violation of our rules, we are instructing the broadcaster to transmit a statement of our findings against it on the BBC's second channel at 9pm, with a schedule to be determined," the regulator stated.
'Risk to Damage Confidence'
The watchdog's statement said: "The inquiry we conducted found that the programme's lack of disclosure that the voice's father served in a position in the Hamas-run administration was significantly deceptive.
"It meant that the audience did not have critical information which may have been extremely pertinent to their evaluation of the narrator and the content he presented.
"Credibility is at the center of the relationship between a television network and its viewers, particularly for a national broadcasting corporation such as the BBC.
"This failing had the potential to erode the significantly high degrees of confidence that viewers would have placed in a BBC factual programme about the Israel-Gaza war."
The programme was withdrawn from the online platform in February after the narrator's personal associations emerged, and in the month of July an internal BBC review found it breached the organization's editorial guidelines on factual correctness.
A BBC spokesperson said: "The regulator's decision is in line with the results of Peter Johnston's review, that there was a serious error in the documentary in relation to the corporation's content standards on truthfulness, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we comply with the authority's determination in its entirety. We will adhere to the directive as soon as the date and wording are determined."
