The public service broadcaster was found to have committed a "serious breach" of media regulations by not revealing that the presenter of a film about Gaza was the offspring of a Hamas administrator, according to regulatory body Ofcom.
An investigation by the broadcasting watchdog into Gaza: How to Survive a Warzone has determined that the film was "substantially inaccurate".
The BBC's director general had already issued an apology, stating there had been "a significant failing in relation to truthfulness".
The regulator has instructed the broadcaster to broadcast a prime-time statement about its findings.
"Given this constitutes a serious breach of our rules, we are ordering the BBC to broadcast a announcement of our findings against it on the BBC's second channel at 9pm, with a timing to be finalised," the statement read.
'Possibility to Damage Confidence'
The watchdog's statement declared: "Our probe concluded that the programme's lack of disclosure that the voice's father occupied a role in the Hamas-administered government was significantly deceptive.
"It meant that the public did not have critical information which may have been very significant to their assessment of the voice and the content he presented.
"Credibility is at the center of the bond between a media organization and its audience, especially for a public service broadcaster such as the BBC.
"This oversight had the possibility to erode the exceptionally strong degrees of confidence that the public would have put in a documentary produced by the BBC about the Gaza conflict."
The documentary was withdrawn from the online platform in the month of February after the boy's family links were revealed, and in July an corporation's own inquiry found it violated the broadcaster's editorial guidelines on truthfulness.
A representative for the broadcaster stated: "The regulator's decision is in accordance with the results of Peter Johnston's review, that there was a major oversight in the programme in relation to the corporation's content standards on accuracy, which aligns with Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we agree with the regulator's ruling in its entirety. We will adhere to the sanction as soon as the date and language are determined."
