The BBC was found to have committed a "major breach" of media regulations by omitting to mention that the presenter of a programme about the Gaza conflict was the child of a Hamas official, as ruled by British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "substantially inaccurate".
The head of the BBC had earlier expressed regret, noting there had been "a significant failing in relation to accuracy".
The regulator has directed the BBC to air a peak-time statement about its decisions.
"Given this constitutes a serious breach of our code, we are ordering the corporation to air a message of our determinations against it on BBC Two at 21:00, with a date to be determined," the regulator stated.
'Potential to Undermine Credibility'
The regulator's announcement said: "Our probe concluded that the film's omission to reveal that the presenter's male guardian held a position in the Hamas-run authority was materially misleading.
"This implied that the audience did not have critical information which may have been highly relevant to their judgment of the presenter and the details he presented.
"Credibility is at the core of the bond between a broadcaster and its viewers, particularly for a state-funded media outlet such as the BBC.
"This oversight had the risk to undermine the very considerable amounts of credibility that viewers would have placed in a documentary produced by the BBC about the Gaza conflict."
The film was removed from the online platform in February after the presenter's familial connections emerged, and in the month of July an internal BBC review found it violated the corporation's content policies on accuracy.
A corporation official said: "The authority's determination is in line with the conclusions of the corporation's inquiry, that there was a major oversight in the programme in relation to the corporation's content standards on accuracy, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with Ofcom's decision in complete. We will follow the sanction as soon as the timing and wording are finalised."
