The British broadcaster committed a "significant breach" of broadcasting rules by not revealing that the presenter of a documentary about the Gaza conflict was the son of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the programme was "materially misleading".
The head of the BBC had previously apologised, saying there had been "a major oversight in relation to truthfulness".
Ofcom has instructed the broadcaster to transmit a evening announcement about its conclusions.
"Given this constitutes a significant violation of our rules, we are instructing the BBC to air a message of our findings against it on the BBC's second channel at 21:00, with a timing to be confirmed," the statement read.
'Risk to Erode Credibility'
The watchdog's statement declared: "Our investigation concluded that the documentary's lack of disclosure that the narrator's male guardian served in a position in the Hamas-administered administration was significantly deceptive.
"This implied that the viewers did not have essential details which may have been very significant to their evaluation of the presenter and the details he shared.
"Credibility is at the heart of the relationship between a television network and its audience, especially for a state-funded media outlet such as the BBC.
"This oversight had the risk to undermine the very considerable amounts of credibility that the public would have put in a documentary produced by the BBC about the Israel-Gaza war."
The programme was pulled from the BBC's streaming service in the month of February after the narrator's personal associations were revealed, and in the month of July an internal BBC review concluded it violated the corporation's journalistic standards on factual correctness.
A representative for the broadcaster commented: "The regulator's decision is in agreement with the results of the corporation's inquiry, that there was a major oversight in the film in relation to the corporation's content standards on accuracy, which reflects regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we accept the authority's determination in complete. We will comply with the directive as soon as the timing and wording are confirmed."
