The British broadcaster was found to have committed a "major breach" of broadcasting rules by omitting to mention that the narrator of a programme about Gaza was the offspring of a Hamas representative, according to UK media regulator Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, noting there had been "a major oversight in relation to accuracy".
The authority has directed the broadcaster to transmit a prime-time announcement about its findings.
"Given this constitutes a major infringement of our rules, we are ordering the corporation to transmit a announcement of our findings against it on BBC2 at 21:00, with a schedule to be determined," it said.
'Risk to Undermine Credibility'
The regulator's announcement said: "Our investigation found that the film's omission to reveal that the narrator's father served in a position in the Hamas-run government was significantly deceptive.
"This implied that the audience did not have critical information which may have been highly relevant to their judgment of the narrator and the content he presented.
"Trust is at the heart of the bond between a television network and its viewers, notably for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to erode the exceptionally strong amounts of trust that viewers would have invested in a documentary produced by the BBC about the conflict in Gaza."
The documentary was pulled from the online platform in the month of February after the narrator's familial connections were revealed, and in the month of July an corporation's own inquiry found it breached the corporation's editorial guidelines on truthfulness.
A representative for the broadcaster said: "The regulator's decision is in line with the findings of the internal assessment, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which corresponds to Rule 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we comply with the regulator's ruling in full. We will adhere to the sanction as soon as the schedule and wording are finalised."
