The British broadcaster engaged in a "serious breach" of broadcasting rules by not revealing that the narrator of a film about Gaza was the son of a Hamas representative, as determined by regulatory body Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has found that the documentary was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a serious error in relation to truthfulness".
Ofcom has directed the BBC to transmit a evening statement about its conclusions.
"Since this amounts to a significant violation of our code, we are instructing the broadcaster to broadcast a message of our conclusions against it on BBC2 at nine o'clock in the evening, with a schedule to be determined," it said.
'Potential to Erode Trust'
The watchdog's statement said: "Our investigation found that the documentary's omission to reveal that the narrator's parent occupied a role in the Hamas-controlled authority was significantly deceptive.
"Consequently that the viewers did not have essential details which may have been highly relevant to their evaluation of the narrator and the details he presented.
"Trust is at the heart of the connection between a media organization and its viewers, especially for a national broadcasting corporation such as the BBC.
"This oversight had the risk to undermine the exceptionally strong amounts of trust that audiences would have put in a BBC factual programme about the Gaza conflict."
The film was pulled from the BBC's streaming service in the month of February after the presenter's family links came to light, and in this past July an broadcaster's internal assessment found it violated the broadcaster's editorial guidelines on accuracy.
A BBC spokesperson stated: "The regulator's decision is in accordance with the results of the corporation's inquiry, that there was a significant failing in the film in relation to the corporation's content standards on truthfulness, which aligns with Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we comply with Ofcom's decision in full. We will follow the sanction as soon as the date and wording are finalised."
