The BBC was found to have committed a "major breach" of broadcasting rules by failing to disclose that the voice of a documentary about the Gaza conflict was the son of a Hamas administrator, as ruled by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the documentary was "substantially inaccurate".
The chief executive of the broadcaster had earlier expressed regret, stating there had been "a major oversight in relation to factual correctness".
The regulator has instructed the broadcaster to broadcast a peak-time statement about its conclusions.
"As this represents a major infringement of our rules, we are ordering the BBC to air a statement of our findings against it on BBC2 at 21:00, with a timing to be finalised," the statement read.
'Possibility to Damage Credibility'
The regulator's report declared: "The inquiry we conducted determined that the film's lack of disclosure that the narrator's father occupied a post in the Hamas-run authority was significantly deceptive.
"It meant that the public did not have critical information which may have been extremely pertinent to their assessment of the presenter and the information he provided.
"Trust is at the heart of the relationship between a media organization and its audience, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the potential to erode the very considerable amounts of trust that the public would have put in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was pulled from the BBC's streaming service in the month of February after the presenter's familial connections were revealed, and in July an internal BBC review determined it infringed the broadcaster's editorial guidelines on truthfulness.
A corporation official said: "The Ofcom ruling is in accordance with the results of the internal assessment, that there was a major oversight in the programme in relation to the corporation's content standards on truthfulness, which aligns with Rule 2.2 of the regulator's media standards.
"We have apologised for this and we agree with the authority's determination in complete. We will comply with the sanction as soon as the timing and language are confirmed."
