The British broadcaster committed a "significant breach" of industry standards by omitting to mention that the narrator of a film about Gaza was the offspring of a Hamas official, as determined by UK media regulator Ofcom.
An inquiry by Ofcom into the programme Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The head of the BBC had previously apologised, noting there had been "a significant failing in relation to truthfulness".
The regulator has directed the corporation to broadcast a evening declaration about its decisions.
"Since this amounts to a serious breach of our rules, we are instructing the broadcaster to broadcast a statement of our findings against it on BBC Two at nine o'clock in the evening, with a timing to be determined," the regulator stated.
'Potential to Damage Confidence'
The regulator's statement declared: "Our probe concluded that the film's omission to reveal that the narrator's father served in a position in the Hamas-administered authority was materially misleading.
"This implied that the viewers did not have vital facts which may have been highly relevant to their judgment of the voice and the information he shared.
"Credibility is at the heart of the relationship between a television network and its public, notably for a national broadcasting corporation such as the public broadcaster.
"This oversight had the risk to erode the exceptionally strong levels of confidence that audiences would have put in a BBC factual programme about the Gaza conflict."
The programme was removed from the BBC's streaming service in February after the boy's familial connections were revealed, and in July an corporation's own inquiry found it breached the corporation's content policies on accuracy.
A representative for the broadcaster commented: "The authority's determination is in agreement with the results of the internal assessment, that there was a major oversight in the programme in relation to the broadcaster's journalistic policies on factual correctness, which aligns with clause 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the authority's determination in its entirety. We will adhere to the sanction as soon as the date and wording are determined."
