The BBC engaged in a "significant breach" of broadcasting rules by failing to disclose that the presenter of a film about the Gaza conflict was the child of a Hamas representative, as ruled by UK media regulator Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The BBC's director general had earlier expressed regret, stating there had been "a major oversight in relation to accuracy".
The regulator has instructed the corporation to transmit a evening announcement about its decisions.
"As this represents a significant violation of our regulations, we are instructing the BBC to transmit a statement of our findings against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be finalised," the regulator stated.
'Risk to Erode Trust'
The regulator's announcement said: "Our investigation found that the film's failure to disclose that the voice's parent served in a role in the Hamas-run government was materially misleading.
"This implied that the viewers did not have vital facts which may have been extremely pertinent to their assessment of the narrator and the details he provided.
"Credibility is at the heart of the connection between a media organization and its viewers, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the potential to undermine the significantly high levels of trust that the public would have invested in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from iPlayer in last February after the presenter's personal associations came to light, and in July an corporation's own inquiry concluded it breached the corporation's content policies on factual correctness.
A corporation official said: "The Ofcom ruling is in line with the results of the internal assessment, that there was a significant failing in the documentary in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept Ofcom's decision in full. We will comply with the directive as soon as the schedule and wording are confirmed."
