The BBC was found to have committed a "serious breach" of broadcasting rules by not revealing that the narrator of a film about the Gaza conflict was the child of a Hamas representative, as ruled 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 "significantly deceptive".
The head of the BBC had previously apologised, saying there had been "a serious error in relation to accuracy".
Ofcom has ordered the corporation to broadcast a peak-time announcement about its decisions.
"Given this constitutes a serious breach of our regulations, we are ordering the corporation to air a statement of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a date to be determined," the statement read.
'Possibility to Erode Credibility'
The authority's report declared: "The inquiry we conducted concluded that the film's omission to reveal that the narrator's male guardian occupied a post in the Hamas-controlled authority was materially misleading.
"It meant that the public did not have critical information which may have been very significant to their judgment of the voice and the information he presented.
"Confidence is at the center of the bond between a broadcaster and its public, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the possibility to damage the exceptionally strong degrees of trust that viewers would have placed in a factual film from the broadcaster about the Gaza conflict."
The documentary was pulled from the online platform in February after the boy's family links came to light, and in the month of July an corporation's own inquiry concluded it breached the organization's content policies on factual correctness.
A representative for the broadcaster commented: "The regulator's decision is in accordance with the findings of the internal assessment, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on truthfulness, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept the authority's determination in its entirety. We will adhere to the sanction as soon as the schedule and wording are confirmed."
