The public service broadcaster committed a "serious breach" of broadcasting rules by failing to disclose that the voice of a film about the Gaza situation was the son of a Hamas representative, as determined by UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The chief executive of the broadcaster had earlier expressed regret, saying there had been "a significant failing in relation to accuracy".
The regulator has instructed the corporation to air a prime-time statement about its conclusions.
"Since this amounts to a significant violation of our rules, we are instructing the broadcaster to broadcast a message of our conclusions against it on the BBC's second channel at 21:00, with a schedule to be confirmed," the regulator stated.
'Possibility to Undermine Credibility'
The authority's report said: "Our probe determined that the programme's failure to disclose that the voice's parent held a role in the Hamas-administered administration was significantly deceptive.
"This implied that the audience did not have critical information which may have been highly relevant to their evaluation of the presenter and the information he presented.
"Confidence is at the heart of the relationship between a media organization and its public, notably for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the potential to erode the very considerable levels of trust that viewers would have invested in a BBC factual programme about the conflict in Gaza."
The film was removed from the online platform in February after the narrator's familial connections came to light, and in the month of July an corporation's own inquiry concluded it infringed the corporation's journalistic standards on factual correctness.
A representative for the broadcaster commented: "The Ofcom ruling is in accordance with the results of the corporation's inquiry, that there was a major oversight in the programme in relation to the corporation's content standards on factual correctness, which reflects clause 2.2 of the regulator's media standards.
"We have apologised for this and we agree with Ofcom's decision in complete. We will follow the directive as soon as the timing and wording are confirmed."
