The British broadcaster was found to have committed a "significant breach" of industry standards by failing to disclose that the presenter of a documentary about Gaza was the son of a Hamas representative, according to UK media regulator Ofcom.
An investigation by Ofcom into the programme Gaza: How to Survive a Warzone has determined that the programme was "substantially inaccurate".
The BBC's director general had already issued an apology, stating there had been "a major oversight in relation to accuracy".
Ofcom has ordered the corporation to air a prime-time declaration about its findings.
"Since this amounts to a significant violation of our code, we are directing the corporation to transmit a announcement of our determinations against it on BBC Two at 9pm, with a timing to be determined," the regulator stated.
'Possibility to Undermine Trust'
The authority's announcement said: "The inquiry we conducted determined that the documentary's failure to disclose that the presenter's father served in a post in the Hamas-controlled authority was substantially inaccurate.
"It meant that the public did not have critical information which may have been highly relevant to their judgment of the presenter and the content he provided.
"Credibility is at the core of the connection between a broadcaster and its public, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This failing had the potential to damage the exceptionally strong degrees of trust that audiences would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The programme was removed from the BBC's streaming service in the month of February after the narrator's personal associations came to light, and in the month of July an broadcaster's internal assessment concluded it breached the corporation's content policies on accuracy.
A corporation official stated: "The authority's determination is in agreement with the results of the internal assessment, that there was a significant failing in the programme in relation to the corporation's content standards on factual correctness, which corresponds to Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the regulator's ruling in its entirety. We will follow the sanction as soon as the timing and language are determined."
