The public service broadcaster was found to have committed a "major breach" of media regulations by failing to disclose that the voice of a programme about Gaza was the child of a Hamas administrator, as ruled by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the documentary was "significantly deceptive".
The BBC's director general had already issued an apology, stating there had been "a significant failing in relation to truthfulness".
The authority has instructed the BBC to air a prime-time statement about its decisions.
"As this represents a significant violation of our rules, we are directing the broadcaster to transmit a statement of our findings against it on BBC Two at 21:00, with a date to be determined," the statement read.
'Possibility to Erode Confidence'
The regulator's report declared: "Our probe determined that the film's omission to reveal that the presenter's parent served in a post in the Hamas-run administration was significantly deceptive.
"This implied that the viewers did not have critical information which may have been extremely pertinent to their assessment of the narrator and the information he provided.
"Credibility is at the heart of the connection between a television network and its audience, notably for a state-funded media outlet such as the public broadcaster.
"This failing had the risk to erode the significantly high levels of credibility that the public would have invested in a factual film from the broadcaster about the conflict in Gaza."
The programme was withdrawn from the online platform in last February after the boy's family links came to light, and in this past July an internal BBC review determined it breached the broadcaster's editorial guidelines on factual correctness.
A BBC spokesperson stated: "The authority's determination is in line with the results of Peter Johnston's review, that there was a major oversight in the documentary in relation to the corporation's content standards on factual correctness, which reflects regulation 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we comply with Ofcom's decision in its entirety. We will adhere to the sanction as soon as the schedule and wording are confirmed."
