The British broadcaster engaged in a "significant breach" of media regulations by not revealing that the presenter of a documentary about the Gaza situation was the offspring of a Hamas official, according to UK media regulator Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The BBC's director general had previously apologised, stating there had been "a major oversight in relation to accuracy".
Ofcom has ordered the BBC to air a peak-time statement about its decisions.
"Since this amounts to a significant violation of our rules, we are ordering the broadcaster to air a announcement of our determinations against it on BBC Two at nine o'clock in the evening, with a timing to be finalised," the regulator stated.
The regulator's announcement stated: "Our probe found that the documentary's omission to reveal that the narrator's father served in a post in the Hamas-administered government was substantially inaccurate.
"Consequently that the audience did not have vital facts which may have been extremely pertinent to their assessment of the presenter and the details he presented.
"Trust is at the center of the bond between a media organization and its audience, particularly for a public service broadcaster such as the BBC.
"This oversight had the possibility to erode the significantly high amounts of trust that viewers would have invested in a BBC factual programme about the Israel-Gaza war."
The programme was withdrawn from the online platform in the month of February after the boy's familial connections emerged, and in the month of July an broadcaster's internal assessment found it infringed the corporation's editorial guidelines on truthfulness.
A corporation official stated: "The Ofcom ruling is in agreement with the results of the internal assessment, that there was a serious error in the documentary in relation to the corporation's content standards on truthfulness, which aligns with regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept the regulator's ruling in complete. We will comply with the penalty as soon as the schedule and language are finalised."
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