The public service broadcaster was found to have committed a "major breach" of broadcasting rules by failing to disclose that the narrator of a programme about the Gaza conflict was the son of a Hamas official, according to UK media regulator Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has found that the programme was "substantially inaccurate".
The BBC's director general had previously apologised, noting there had been "a major oversight in relation to truthfulness".
The authority has directed the broadcaster to air a prime-time statement about its findings.
"As this represents a serious breach of our code, we are directing the corporation to transmit a message of our conclusions against it on BBC2 at 21:00, with a schedule to be determined," the regulator stated.
'Possibility to Undermine Trust'
The regulator's announcement declared: "Our probe found that the film's failure to disclose that the narrator's parent occupied a post in the Hamas-controlled authority was materially misleading.
"It meant that the audience did not have critical information which may have been extremely pertinent to their judgment of the voice and the content he provided.
"Confidence is at the heart of the connection between a television network and its audience, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This error had the potential to undermine the very considerable amounts of trust that audiences would have placed in a BBC factual programme about the Gaza conflict."
The programme was removed from iPlayer in last February after the narrator's personal associations came to light, and in the month of July an broadcaster's internal assessment concluded it violated the organization's editorial guidelines on accuracy.
A representative for the broadcaster stated: "The Ofcom ruling is in line with the conclusions of the internal assessment, that there was a significant failing in the film in relation to the corporation's content standards on factual correctness, which reflects Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we accept the authority's determination in complete. We will follow the sanction as soon as the date and wording are determined."
