The British broadcaster was found to have committed a "significant breach" of broadcasting rules by failing to disclose that the presenter of a film about Gaza was the offspring of a Hamas official, according to British broadcasting authority Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, noting there had been "a major oversight in relation to accuracy".
Ofcom has directed the broadcaster to broadcast a evening announcement about its findings.
"Since this amounts to a major infringement of our code, we are ordering the corporation to transmit a announcement of our findings against it on BBC Two at nine o'clock in the evening, with a date to be determined," the regulator stated.
'Potential to Damage Trust'
The watchdog's statement said: "Our probe determined that the documentary's lack of disclosure that the presenter's father held a post in the Hamas-run government was significantly deceptive.
"This implied that the viewers did not have vital facts which may have been very significant to their evaluation of the voice and the content he provided.
"Trust is at the heart of the bond between a broadcaster and its viewers, notably for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the possibility to erode the exceptionally strong degrees of trust that audiences would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The film was removed from iPlayer in the month of February after the narrator's family links were revealed, and in July an broadcaster's internal assessment determined it breached the organization's content policies on truthfulness.
A representative for the broadcaster commented: "The Ofcom ruling is in agreement with the findings of the corporation's inquiry, that there was a major oversight in the documentary in relation to the corporation's content standards on factual correctness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with Ofcom's decision in full. We will comply with the directive as soon as the timing and wording are finalised."