The BBC was found to have committed a "major breach" of broadcasting rules by failing to disclose that the voice of a documentary about Gaza was the child of a Hamas representative, as determined by British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the film was "materially misleading".
The chief executive of the broadcaster had already issued an apology, noting there had been "a serious error in relation to factual correctness".
The regulator has instructed the corporation to transmit a prime-time announcement about its findings.
"Since this amounts to a major infringement of our regulations, we are directing the BBC to broadcast a message of our findings against it on the BBC's second channel at 9pm, with a date to be determined," the statement read.
'Possibility to Undermine Confidence'
The authority's statement stated: "Our probe concluded that the documentary's lack of disclosure that the voice's parent held a role in the Hamas-run administration was materially misleading.
"Consequently that the public did not have essential details which may have been very significant to their judgment of the narrator and the information he provided.
"Confidence is at the heart of the relationship between a broadcaster and its viewers, notably for a state-funded media outlet such as the BBC.
"This oversight had the possibility to erode the exceptionally strong amounts of confidence that viewers would have invested in a documentary produced by the BBC about the conflict in Gaza."
The programme was pulled from the BBC's streaming service in last February after the boy's personal associations emerged, and in this past July an broadcaster's internal assessment determined it infringed the broadcaster's content policies on truthfulness.
A representative for the broadcaster said: "The Ofcom ruling is in accordance with the findings of Peter Johnston's review, that there was a significant failing in the programme in relation to the corporation's content standards on factual correctness, which reflects clause 2.2 of the regulator's media standards.
"We have apologised for this and we comply with Ofcom's decision in complete. We will comply with the directive as soon as the schedule and wording are finalised."
