The BBC engaged in a "significant breach" of broadcasting rules by failing to disclose that the presenter of a programme about the Gaza conflict was the child of a Hamas representative, as ruled by UK media regulator Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the film was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, saying there had been "a significant failing in relation to truthfulness".
Ofcom has directed the broadcaster to transmit a peak-time announcement about its conclusions.
"As this represents a serious breach of our rules, we are ordering the corporation to transmit a statement of our findings against it on BBC Two at nine o'clock in the evening, with a schedule to be determined," the regulator stated.
'Risk to Undermine Credibility'
The watchdog's report stated: "The inquiry we conducted determined that the documentary's omission to reveal that the narrator's father held a role in the Hamas-administered administration was materially misleading.
"It meant that the public did not have critical information which may have been highly relevant to their evaluation of the narrator and the content he presented.
"Credibility is at the core of the connection between a media organization and its audience, notably for a public service broadcaster such as the BBC.
"This oversight had the risk to damage the significantly high amounts of trust that the public would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The programme was withdrawn from the online platform in last February after the presenter's personal associations were revealed, and in July an broadcaster's internal assessment concluded it infringed the corporation's journalistic standards on accuracy.
A representative for the broadcaster stated: "The regulator's decision is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which aligns with clause 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the regulator's ruling in complete. We will follow the directive as soon as the schedule and wording are determined."
