The British broadcaster engaged in a "significant breach" of media regulations by failing to disclose that the voice of a documentary about the Gaza situation was the child of a Hamas representative, as ruled by regulatory body Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the film was "materially misleading".
The head of the BBC had previously apologised, stating there had been "a serious error in relation to truthfulness".
The authority has instructed the corporation to transmit a prime-time statement about its findings.
"As this represents a major infringement of our regulations, we are ordering the corporation to broadcast a message of our findings against it on BBC2 at nine o'clock in the evening, with a timing to be finalised," the regulator stated.
'Potential to Damage Confidence'
The watchdog's statement stated: "Our probe determined that the film's omission to reveal that the presenter's male guardian held a post in the Hamas-administered government was materially misleading.
"Consequently that the viewers did not have vital facts which may have been very significant to their judgment of the narrator and the information he shared.
"Confidence is at the heart of the connection between a broadcaster and its viewers, especially for a public service broadcaster such as the BBC.
"This oversight had the possibility to damage the exceptionally strong amounts of confidence that audiences would have put in a BBC factual programme about the conflict in Gaza."
The film was withdrawn from iPlayer in February after the narrator's familial connections were revealed, and in July an broadcaster's internal assessment determined it breached the corporation's editorial guidelines on accuracy.
A BBC spokesperson said: "The regulator's decision is in line with the conclusions of the internal assessment, that there was a serious error in the programme in relation to the corporation's content standards on factual correctness, which aligns with Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept the regulator's ruling in complete. We will comply with the directive as soon as the date and wording are confirmed."
