The BBC committed a "serious breach" of media regulations by failing to disclose that the presenter of a film about the Gaza conflict was the child of a Hamas representative, as ruled by UK media regulator Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "materially misleading".
The BBC's director general had previously apologised, saying there had been "a significant failing in relation to truthfulness".
The authority has ordered the BBC to broadcast a prime-time declaration about its findings.
"Since this amounts to a serious breach of our regulations, we are directing the BBC to transmit a statement of our determinations against it on BBC Two at nine o'clock in the evening, with a schedule to be confirmed," the statement read.
'Risk to Damage Trust'
The authority's announcement stated: "The inquiry we conducted determined that the documentary's omission to reveal that the narrator's parent served in a position in the Hamas-administered authority was substantially inaccurate.
"This implied that the public did not have essential details which may have been highly relevant to their evaluation of the narrator and the details he presented.
"Trust is at the core of the relationship between a broadcaster and its public, particularly for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the risk to undermine the significantly high amounts of trust that audiences would have invested in a documentary produced by the BBC about the conflict in Gaza."
The documentary was pulled from iPlayer in last February after the boy's family links came to light, and in the month of July an broadcaster's internal assessment determined it breached the broadcaster's editorial guidelines on truthfulness.
A BBC spokesperson stated: "The Ofcom ruling is in line with the conclusions of the internal assessment, that there was a serious error in the film in relation to the broadcaster's journalistic policies on accuracy, which aligns with Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we agree with Ofcom's decision in its entirety. We will comply with the directive as soon as the timing and language are determined."
