The BBC was found to have committed a "significant breach" of industry standards by not revealing that the presenter of a film about the Gaza conflict was the offspring of a Hamas representative, as determined by British broadcasting authority Ofcom.
An investigation by Ofcom into Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The BBC's director general had previously apologised, noting there had been "a major oversight in relation to accuracy".
Ofcom has instructed the BBC to broadcast a evening statement about its decisions.
"Since this amounts to a serious breach of our regulations, we are instructing the corporation to transmit a announcement of our determinations against it on BBC Two at 21:00, with a timing to be finalised," the statement read.
'Risk to Erode Trust'
The regulator's announcement declared: "Our probe found that the film's failure to disclose that the voice's father held a role in the Hamas-administered authority was significantly deceptive.
"Consequently that the audience did not have vital facts which may have been highly relevant to their judgment of the narrator and the information he provided.
"Confidence is at the heart of the bond between a broadcaster and its public, notably for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the potential to erode the significantly high levels of credibility that viewers would have invested in a BBC factual programme about the Gaza conflict."
The film was pulled from the BBC's streaming service in February after the presenter's family links came to light, and in the month of July an broadcaster's internal assessment concluded it violated the broadcaster's journalistic standards on truthfulness.
A corporation official commented: "The regulator's decision is in accordance with the conclusions of the corporation's inquiry, that there was a significant failing in the film in relation to the corporation's content standards on factual correctness, which reflects regulation 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we comply with the regulator's ruling in its entirety. We will follow the directive as soon as the date and wording are finalised."
