The BBC was found to have committed a "major breach" of media regulations by not revealing that the voice of a documentary about Gaza was the offspring of a Hamas administrator, according to regulatory body Ofcom.
An probe by Ofcom into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, saying there had been "a serious error in relation to accuracy".
The regulator has directed the corporation to air a peak-time statement about its findings.
"Since this amounts to a serious breach of our code, we are directing the broadcaster to air a message of our findings against it on BBC Two at 9pm, with a schedule to be determined," it said.
'Possibility to Damage Confidence'
The watchdog's statement declared: "The inquiry we conducted determined that the programme's omission to reveal that the voice's father occupied a position in the Hamas-administered administration was significantly deceptive.
"Consequently that the viewers did not have critical information which may have been highly relevant to their evaluation of the voice and the content he shared.
"Trust is at the heart of the connection between a broadcaster and its public, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the potential to damage the exceptionally strong levels of credibility that the public would have put in a BBC factual programme about the conflict in Gaza."
The programme was pulled from iPlayer in last February after the narrator's familial connections came to light, and in the month of July an internal BBC review determined it infringed the broadcaster's editorial guidelines on factual correctness.
A corporation official commented: "The regulator's decision is in accordance with the conclusions of the internal assessment, that there was a major oversight in the documentary in relation to the broadcaster's journalistic policies on truthfulness, which reflects Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we agree with the authority's determination in full. We will adhere to the sanction as soon as the schedule and wording are confirmed."
