The BBC was found to have committed a "serious breach" of broadcasting rules by omitting to mention that the presenter of a programme about the Gaza situation was the child of a Hamas administrator, as ruled by UK media regulator Ofcom.
An probe by the broadcasting watchdog 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, stating there had been "a major oversight in relation to accuracy".
Ofcom has instructed the corporation to air a prime-time statement about its decisions.
"As this represents a major infringement of our regulations, we are directing the BBC to transmit a message of our determinations against it on BBC Two at 9pm, with a timing to be confirmed," the statement read.
'Possibility to Erode Confidence'
The watchdog's statement stated: "Our investigation found that the film's failure to disclose that the presenter's father served in a position in the Hamas-run authority was substantially inaccurate.
"It meant that the audience did not have critical information which may have been very significant to their evaluation of the narrator and the content he presented.
"Trust is at the center of the connection between a broadcaster and its audience, notably for a public service broadcaster such as the BBC.
"This error had the risk to damage the very considerable levels of credibility that the public would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The programme was removed from the BBC's streaming service in February after the presenter's family links emerged, and in the month of July an corporation's own inquiry determined it infringed the broadcaster's journalistic standards on accuracy.
A BBC spokesperson stated: "The authority's determination is in accordance with the findings of the internal assessment, that there was a major oversight in the film in relation to the corporation's content standards on factual correctness, which corresponds to regulation 2.2 of the regulator's media standards.
"We issued an apology for this and we agree with the regulator's ruling in full. We will follow the sanction as soon as the schedule and wording are finalised."
