The BBC was found to have committed a "significant breach" of broadcasting rules by omitting to mention that the narrator of a programme about the Gaza situation was the offspring of a Hamas administrator, as determined by regulatory body Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, noting there had been "a major oversight in relation to factual correctness".
The regulator has ordered the corporation to air a peak-time statement about its findings.
"Since this amounts to a serious breach of our rules, we are directing the broadcaster to transmit a statement of our findings against it on BBC2 at 9pm, with a timing to be finalised," it said.
'Possibility to Damage Trust'
The watchdog's announcement said: "Our investigation determined that the programme's lack of disclosure that the narrator's parent occupied a role in the Hamas-controlled authority was materially misleading.
"This implied that the public did not have vital facts which may have been very significant to their judgment of the presenter and the content he presented.
"Confidence is at the core of the connection between a television network and its viewers, notably for a public service broadcaster such as the BBC.
"This failing had the risk to undermine the very considerable degrees of confidence that audiences would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The programme was pulled from iPlayer in the month of February after the narrator's familial connections came to light, and in July an corporation's own inquiry determined it infringed the organization's journalistic standards on factual correctness.
A representative for the broadcaster said: "The authority's determination is in agreement with the findings of Peter Johnston's review, that there was a major oversight in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which aligns with Rule 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with Ofcom's decision in complete. We will comply with the directive as soon as the schedule and language are confirmed."
