The BBC engaged in a "serious breach" of media regulations by omitting to mention that the voice of a documentary about the Gaza conflict was the child of a Hamas official, according to UK media regulator Ofcom.
An probe by the media regulator into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The head of the BBC had earlier expressed regret, saying there had been "a serious error in relation to factual correctness".
The authority has instructed the BBC to air a prime-time declaration about its decisions.
"As this represents a serious breach of our regulations, we are instructing the BBC to broadcast a statement of our conclusions against it on the BBC's second channel at 9pm, with a date to be determined," it said.
'Potential to Undermine Credibility'
The regulator's report said: "Our probe determined that the documentary's lack of disclosure that the presenter's father served in a role in the Hamas-controlled administration was significantly deceptive.
"Consequently that the audience did not have critical information which may have been highly relevant to their judgment of the presenter and the information he shared.
"Trust is at the heart of the relationship between a broadcaster and its public, notably for a public service broadcaster such as the public broadcaster.
"This error had the possibility to damage the exceptionally strong degrees of confidence that audiences would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was pulled from the online platform in last February after the narrator's family links emerged, and in this past July an broadcaster's internal assessment concluded it violated the organization's content policies on accuracy.
A BBC spokesperson commented: "The regulator's decision is in agreement with the results of Peter Johnston's review, that there was a significant failing in the programme in relation to the corporation's content standards on factual correctness, which reflects clause 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 directive as soon as the timing and language are determined."
