The BBC was found to have committed a "major breach" of industry standards by omitting to mention that the presenter of a film about the Gaza conflict was the child of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog 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 major oversight in relation to truthfulness".
Ofcom has directed the BBC to air a evening announcement about its decisions.
"Since this amounts to a serious breach of our regulations, we are ordering the broadcaster to transmit a message of our determinations against it on BBC Two at nine o'clock in the evening, with a timing to be determined," it said.
'Possibility to Damage Credibility'
The authority's statement declared: "The inquiry we conducted concluded that the film's lack of disclosure that the presenter's male guardian occupied a role in the Hamas-administered administration was significantly deceptive.
"This implied that the audience did not have critical information which may have been highly relevant to their evaluation of the voice and the information he shared.
"Credibility is at the core of the bond between a media organization and its viewers, notably for a public service broadcaster such as the public broadcaster.
"This failing had the possibility to undermine the exceptionally strong amounts of credibility that viewers would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The programme was removed from iPlayer in the month of February after the presenter's family links came to light, and in the month of July an internal BBC review determined it breached the broadcaster's content policies on accuracy.
A BBC spokesperson commented: "The authority's determination is in agreement with the conclusions of the internal assessment, that there was a major oversight in the programme in relation to the corporation's content standards on factual correctness, which aligns with Rule 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with the authority's determination in full. We will adhere to the sanction as soon as the schedule and wording are finalised."