The public service broadcaster engaged in a "major breach" of media regulations by omitting to mention that the narrator of a programme about Gaza was the offspring of a Hamas official, according to British broadcasting authority Ofcom.
An probe by the media regulator into Gaza: How to Survive a Warzone has concluded that the film was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, noting there had been "a serious error in relation to truthfulness".
The authority has directed the BBC to transmit a prime-time statement about its findings.
"As this represents a serious breach of our code, we are ordering the BBC to transmit a message of our conclusions against it on BBC Two at 9pm, with a timing to be finalised," it said.
'Risk to Damage Trust'
The regulator's announcement stated: "The inquiry we conducted found that the film's omission to reveal that the presenter's male guardian served in a role in the Hamas-run government was materially misleading.
"It meant that the public did not have essential details which may have been extremely pertinent to their assessment of the presenter and the content he provided.
"Confidence is at the core of the connection between a broadcaster and its viewers, notably for a public service broadcaster such as the BBC.
"This error had the risk to undermine the very considerable levels of confidence that viewers would have invested in a documentary produced by the BBC about the conflict in Gaza."
The programme was pulled from the BBC's streaming service in the month of February after the boy's familial connections were revealed, and in this past July an internal BBC review determined it infringed the organization's journalistic standards on truthfulness.
A representative for the broadcaster stated: "The authority's determination is in accordance with the results of the corporation's inquiry, that there was a major oversight in the film in relation to the corporation's content standards on factual correctness, which reflects clause 2.2 of the regulator's media standards.
"We issued an apology for this and we accept the regulator's ruling in complete. We will follow the directive as soon as the timing and wording are confirmed."
