The British broadcaster engaged in a "significant breach" of industry standards by failing to disclose that the voice of a film about Gaza was the child of a Hamas representative, as determined by regulatory body Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The head of the BBC had previously apologised, noting there had been "a significant failing in relation to truthfulness".
The authority has directed the corporation to air a evening statement about its decisions.
"As this represents a serious breach of our regulations, we are ordering the corporation to transmit a announcement of our conclusions against it on BBC2 at 21:00, with a timing to be determined," the regulator stated.
'Potential to Undermine Trust'
The authority's announcement declared: "The inquiry we conducted concluded that the film's failure to disclose that the narrator's male guardian held a position in the Hamas-run government was substantially inaccurate.
"This implied that the public did not have vital facts which may have been very significant to their evaluation of the voice and the content he provided.
"Confidence is at the center of the bond between a television network and its audience, notably for a public service broadcaster such as the public broadcaster.
"This failing had the risk to undermine the exceptionally strong amounts of credibility that the public would have put in a documentary produced by the BBC about the conflict in Gaza."
The film was removed from the BBC's streaming service in February after the presenter's personal associations were revealed, and in this past July an broadcaster's internal assessment found it infringed the organization's content policies on factual correctness.
A BBC spokesperson said: "The Ofcom ruling is in agreement with the conclusions of the corporation's inquiry, that there was a major oversight in the programme in relation to the broadcaster's journalistic policies on factual correctness, which corresponds to clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we accept Ofcom's decision in its entirety. We will adhere to the sanction as soon as the timing and language are finalised."
