The BBC was found to have committed a "significant breach" of broadcasting rules by failing to disclose that the narrator of a film about the Gaza conflict was the son of a Hamas official, as determined by British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog into Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The head of the BBC had earlier expressed regret, stating there had been "a major oversight in relation to truthfulness".
The regulator has ordered the BBC to transmit a prime-time statement about its decisions.
"As this represents a significant violation of our regulations, we are ordering the corporation to broadcast a statement of our findings against it on BBC Two at 21:00, with a schedule to be confirmed," it said.
'Possibility to Damage Confidence'
The regulator's announcement stated: "The inquiry we conducted concluded that the film's omission to reveal that the voice's parent occupied a post in the Hamas-run government was significantly deceptive.
"It meant that the audience did not have vital facts which may have been highly relevant to their judgment of the presenter and the content he presented.
"Credibility is at the core of the connection between a media organization and its public, particularly for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to erode the very considerable levels of credibility that viewers would have put in a BBC factual programme about the conflict in Gaza."
The documentary was removed from the BBC's streaming service in last February after the boy's familial connections were revealed, and in this past July an corporation's own inquiry determined it breached the corporation's editorial guidelines on truthfulness.
A representative for the broadcaster commented: "The regulator's decision is in accordance with the findings of the corporation's inquiry, that there was a significant failing in the documentary in relation to the BBC's Editorial Guidelines on accuracy, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with the authority's determination in its entirety. We will comply with the directive as soon as the schedule and language are finalised."
