The public service broadcaster was found to have committed a "serious breach" of industry standards by not revealing that the narrator of a programme about Gaza was the child of a Hamas administrator, as ruled by UK media regulator Ofcom.
An inquiry by the media regulator into the documentary titled Gaza: How to Survive a Warzone has found that the film was "substantially inaccurate".
The head of the BBC had previously apologised, noting there had been "a significant failing in relation to factual correctness".
Ofcom has directed the BBC to broadcast a evening statement about its findings.
"As this represents a major infringement of our code, we are directing the BBC to air a statement of our findings against it on the BBC's second channel at 21:00, with a schedule to be finalised," the regulator stated.
'Risk to Damage Credibility'
The watchdog's report stated: "The inquiry we conducted concluded that the programme's omission to reveal that the voice's male guardian occupied a role in the Hamas-run authority was significantly deceptive.
"It meant that the public did not have vital facts which may have been extremely pertinent to their evaluation of the voice and the content he presented.
"Trust is at the core of the relationship between a media organization and its audience, particularly for a national broadcasting corporation such as the British Broadcasting Corporation.
"This oversight had the possibility to damage the significantly high levels of credibility that the public would have put in a factual film from the broadcaster about the conflict in Gaza."
The documentary was removed from the online platform in last February after the narrator's family links were revealed, and in July an corporation's own inquiry determined it violated the corporation's journalistic standards on truthfulness.
A corporation official stated: "The authority's determination is in agreement with the findings of the corporation's inquiry, that there was a major oversight in the film in relation to the broadcaster's journalistic policies on truthfulness, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we accept the regulator's ruling in full. We will follow the directive as soon as the date and language are finalised."
