The BBC was found to have committed a "serious breach" of broadcasting rules by failing to disclose that the narrator of a film about the Gaza conflict was the son of a Hamas official, as ruled by British broadcasting authority Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the film was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, stating there had been "a serious error in relation to accuracy".
Ofcom has instructed the BBC to broadcast a prime-time announcement about its conclusions.
"Since this amounts to a major infringement of our rules, we are instructing the corporation to transmit a message of our conclusions against it on BBC2 at nine o'clock in the evening, with a schedule to be confirmed," the statement read.
'Potential to Undermine Credibility'
The regulator's announcement declared: "Our probe concluded that the programme's lack of disclosure that the narrator's father occupied a role in the Hamas-administered administration was significantly deceptive.
"This implied that the viewers did not have vital facts which may have been extremely pertinent to their assessment of the voice and the content he provided.
"Trust is at the core of the relationship between a broadcaster and its public, especially for a state-funded media outlet such as the public broadcaster.
"This failing had the risk to erode the exceptionally strong amounts of confidence that audiences would have placed in a BBC factual programme about the Israel-Gaza war."
The documentary was removed from the BBC's streaming service in the month of February after the boy's personal associations emerged, and in this past July an corporation's own inquiry determined it breached the organization's journalistic standards on accuracy.
A BBC spokesperson stated: "The regulator's decision is in agreement with the findings of the internal assessment, that there was a serious error in the film in relation to the corporation's content standards on truthfulness, which reflects Rule 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we accept the regulator's ruling in its entirety. We will comply with the directive as soon as the timing and wording are finalised."
