The BBC committed a "significant breach" of broadcasting rules by failing to disclose that the narrator of a film about Gaza was the son of a Hamas official, according to UK media regulator Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The head of the BBC had previously apologised, noting there had been "a major oversight in relation to truthfulness".
The regulator has instructed the corporation to broadcast a evening declaration about its conclusions.
"Since this amounts to a significant violation of our rules, we are directing the corporation to air a message of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a date to be determined," the regulator stated.
'Risk to Erode Confidence'
The authority's report said: "Our probe concluded that the documentary's omission to reveal that the voice's parent served in a position in the Hamas-administered administration was substantially inaccurate.
"Consequently that the public did not have essential details which may have been very significant to their assessment of the narrator and the information he provided.
"Confidence is at the heart of the connection between a television network and its public, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the potential to erode the very considerable amounts of trust that viewers would have put in a BBC factual programme about the conflict in Gaza."
The programme was pulled from the online platform in February after the narrator's personal associations came to light, and in this past July an internal BBC review concluded it violated the corporation's journalistic standards on accuracy.
A corporation official stated: "The authority's determination is in line with the conclusions of the internal assessment, that there was a serious error in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with the authority's determination in its entirety. We will comply with the penalty as soon as the timing and wording are finalised."
