The British broadcaster was found to have committed a "serious breach" of industry standards by omitting to mention that the presenter of a programme about Gaza was the offspring of a Hamas official, as determined by UK media regulator Ofcom.
An investigation 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 accuracy".
The authority has instructed the corporation to transmit a peak-time statement about its decisions.
"Since this amounts to a major infringement of our regulations, we are instructing the broadcaster to air a announcement of our determinations against it on BBC Two at 9pm, with a timing to be finalised," the statement read.
'Potential to Undermine Trust'
The regulator's statement stated: "Our investigation found that the documentary's failure to disclose that the presenter's male guardian occupied a role in the Hamas-administered government was significantly deceptive.
"This implied that the public did not have essential details which may have been very significant to their evaluation of the presenter and the information he presented.
"Confidence is at the center of the connection between a broadcaster and its audience, particularly for a public service broadcaster such as the BBC.
"This failing had the risk to erode the very considerable levels of confidence that audiences would have put in a documentary produced by the BBC about the Gaza conflict."
The film was withdrawn from the online platform in last February after the presenter's familial connections were revealed, and in this past July an broadcaster's internal assessment concluded it violated the broadcaster's journalistic standards on factual correctness.
A BBC spokesperson commented: "The authority's determination is in agreement with the conclusions of Peter Johnston's review, that there was a serious error in the documentary in relation to the corporation's content standards on accuracy, which aligns with Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we agree with the authority's determination in its entirety. We will adhere to the sanction as soon as the timing and wording are determined."
