The British broadcaster committed a "major breach" of media regulations by not revealing that the narrator of a programme about the Gaza situation was the child of a Hamas representative, as ruled by UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the film was "materially misleading".
The BBC's director general had already issued an apology, stating there had been "a significant failing in relation to factual correctness".
The authority has ordered the BBC to air a evening announcement about its findings.
"Given this constitutes a serious breach of our rules, we are ordering the broadcaster to air a statement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a date to be determined," the regulator stated.
'Possibility to Undermine Confidence'
The regulator's announcement stated: "The inquiry we conducted found that the documentary's lack of disclosure that the voice's parent held a post in the Hamas-administered administration was significantly deceptive.
"Consequently that the public did not have vital facts which may have been very significant to their judgment of the presenter and the content he provided.
"Confidence is at the center of the bond between a broadcaster and its audience, especially for a national broadcasting corporation such as the public broadcaster.
"This oversight had the potential to erode the very considerable amounts of trust that audiences 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 the month of February after the boy's personal associations emerged, and in the month of July an broadcaster's internal assessment found it violated the broadcaster's editorial guidelines on truthfulness.
A corporation official commented: "The authority's determination is in line with the conclusions of Peter Johnston's review, that there was a significant failing in the film in relation to the broadcaster's journalistic policies on factual correctness, which aligns with Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the authority's determination in complete. We will comply with the penalty as soon as the timing and wording are finalised."
