The public service broadcaster engaged in a "significant breach" of industry standards by omitting to mention that the voice of a documentary about the Gaza situation was the offspring of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has found that the film was "materially misleading".
The chief executive of the broadcaster had previously apologised, noting there had been "a serious error in relation to accuracy".
The regulator has directed the corporation to air a prime-time announcement about its conclusions.
"Given this constitutes a significant violation of our regulations, we are ordering the broadcaster to air a message of our determinations against it on BBC2 at 9pm, with a schedule to be finalised," the statement read.
'Risk to Erode Trust'
The regulator's report stated: "Our investigation concluded that the documentary's omission to reveal that the voice's male guardian served in a post in the Hamas-administered government was significantly deceptive.
"This implied that the public 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 center of the relationship between a broadcaster and its audience, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This oversight had the risk to erode the significantly high degrees of trust that viewers would have invested in a factual film from the broadcaster about the Gaza conflict."
The documentary was pulled from iPlayer in last February after the boy's familial connections emerged, and in the month of July an broadcaster's internal assessment determined it breached the broadcaster's journalistic standards on truthfulness.
A corporation official commented: "The Ofcom ruling is in accordance with the findings of the internal assessment, that there was a significant failing in the documentary in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept the authority's determination in its entirety. We will comply with the sanction as soon as the schedule and wording are finalised."
