The British broadcaster engaged in a "significant breach" of broadcasting rules by omitting to mention that the narrator of a film about Gaza was the child of a Hamas official, as determined by UK media regulator Ofcom.
An investigation by Ofcom into Gaza: How to Survive a Warzone has found that the documentary was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a significant failing in relation to truthfulness".
Ofcom has instructed the broadcaster to transmit a evening statement about its findings.
"Given this constitutes a significant violation of our code, we are directing the corporation to air a message of our determinations against it on the BBC's second channel at 21:00, with a date to be finalised," the regulator stated.
'Potential to Damage Confidence'
The regulator's announcement said: "Our probe found that the programme's omission to reveal that the narrator's father held a role in the Hamas-controlled government was materially misleading.
"It meant that the public did not have critical information which may have been extremely pertinent to their assessment of the voice and the content he presented.
"Trust is at the center of the connection between a media organization and its audience, notably for a national broadcasting corporation such as the public broadcaster.
"This error had the possibility to damage the significantly high degrees of trust that viewers would have put in a BBC factual programme about the conflict in Gaza."
The documentary was withdrawn from the online platform in the month of February after the presenter's familial connections were revealed, and in July an broadcaster's internal assessment determined it breached the corporation's content policies on truthfulness.
A BBC spokesperson said: "The authority's determination is in line with the findings of the internal assessment, that there was a significant failing in the film in relation to the BBC's Editorial Guidelines on truthfulness, which aligns with clause 2.2 of the regulator's media standards.
"We expressed regret for this and we accept Ofcom's decision in its entirety. We will adhere to the directive as soon as the timing and language are confirmed."
