The public service broadcaster was found to have committed a "major breach" of media regulations by omitting to mention that the narrator of a programme about the Gaza conflict was the child of a Hamas representative, as ruled by UK media regulator Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the film was "substantially inaccurate".
The chief executive of the broadcaster had previously apologised, noting there had been "a serious error in relation to truthfulness".
The authority has instructed the broadcaster to broadcast a evening statement about its conclusions.
"Given this constitutes a serious breach of our rules, we are instructing the BBC to transmit a statement of our findings against it on the BBC's second channel at 9pm, with a timing to be confirmed," the statement read.
'Risk to Erode Credibility'
The regulator's report said: "Our investigation found that the film's failure to disclose that the presenter's father held a position in the Hamas-run administration was significantly deceptive.
"This implied that the public did not have critical information which may have been very significant to their judgment of the presenter and the content he presented.
"Credibility is at the center of the bond between a broadcaster and its audience, especially for a public service broadcaster such as the public broadcaster.
"This failing had the possibility to undermine the significantly high levels of trust that viewers would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was pulled from the BBC's streaming service in the month of February after the narrator's family links came to light, and in the month of July an corporation's own inquiry concluded it breached the corporation's journalistic standards on factual correctness.
A corporation official stated: "The regulator's decision is in line with the results of the corporation's inquiry, that there was a serious error in the documentary in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we agree with Ofcom's decision in complete. We will comply with the sanction as soon as the timing and wording are finalised."
