The British broadcaster was found to have committed a "significant breach" of broadcasting rules by not revealing that the presenter of a film about the Gaza conflict was the child of a Hamas representative, according to UK media regulator Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The head of the BBC had already issued an apology, stating there had been "a significant failing in relation to factual correctness".
The authority has directed the BBC to broadcast a prime-time announcement about its conclusions.
"As this represents a significant violation of our code, we are directing the broadcaster to broadcast a announcement of our conclusions against it on BBC2 at 9pm, with a date to be confirmed," the statement read.
'Potential to Damage Confidence'
The watchdog's statement said: "Our probe found that the film's failure to disclose that the presenter's male guardian served in a position in the Hamas-administered government was materially misleading.
"Consequently that the audience did not have essential details which may have been highly relevant to their judgment of the voice and the information he provided.
"Confidence is at the core of the bond between a broadcaster and its audience, especially for a public service broadcaster such as the public broadcaster.
"This oversight had the possibility to damage the exceptionally strong amounts of trust that audiences would have put in a factual film from the broadcaster about the Gaza conflict."
The programme was pulled from the BBC's streaming service in last February after the narrator's personal associations were revealed, and in this past July an internal BBC review concluded it infringed the broadcaster's editorial guidelines on factual correctness.
A corporation official said: "The authority's determination is in line with the conclusions of the corporation's inquiry, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on accuracy, which reflects regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we accept the regulator's ruling in complete. We will adhere to the directive as soon as the schedule and language are determined."
