The British broadcaster committed a "serious breach" of broadcasting rules by failing to disclose that the narrator of a programme about the Gaza situation was the son of a Hamas administrator, as determined by regulatory body Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The head of the BBC had already issued an apology, noting there had been "a major oversight in relation to truthfulness".
Ofcom has ordered the BBC to transmit a prime-time statement about its conclusions.
"Since this amounts to a major infringement of our code, we are instructing the broadcaster to broadcast a statement of our conclusions against it on BBC2 at 9pm, with a date to be determined," the regulator stated.
'Risk to Erode Credibility'
The authority's report stated: "Our probe concluded that the programme's omission to reveal that the voice's male guardian served in a role in the Hamas-run authority was substantially inaccurate.
"This implied that the viewers did not have vital facts which may have been highly relevant to their assessment of the narrator and the content he provided.
"Confidence is at the core of the bond between a television network and its viewers, particularly for a public service broadcaster such as the BBC.
"This oversight had the potential to damage the exceptionally strong levels of trust that audiences would have invested in a factual film from the broadcaster about the conflict in Gaza."
The film was pulled from the online platform in February after the presenter's familial connections came to light, and in July an corporation's own inquiry determined it breached the broadcaster's journalistic standards on accuracy.
A corporation official said: "The regulator's decision is in accordance with the results of the corporation's inquiry, that there was a significant failing in the film in relation to the BBC's Editorial Guidelines on factual correctness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept the authority's determination in complete. We will adhere to the directive as soon as the schedule and wording are determined."
