The British broadcaster committed a "major breach" of broadcasting rules by not revealing that the voice of a film about the Gaza conflict was the son of a Hamas official, as ruled by British broadcasting authority Ofcom.
An probe by Ofcom into Gaza: How to Survive a Warzone has found that the documentary was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a significant failing in relation to factual correctness".
The regulator has instructed the broadcaster to transmit a evening statement about its findings.
"As this represents a major infringement of our rules, we are directing the broadcaster to transmit a statement of our determinations against it on BBC Two at 9pm, with a timing to be confirmed," the statement read.
'Potential to Damage Credibility'
The authority's report stated: "Our probe found that the film's lack of disclosure that the voice's father occupied a role in the Hamas-administered authority was substantially inaccurate.
"This implied that the public did not have essential details which may have been extremely pertinent to their judgment of the narrator and the information he shared.
"Credibility is at the center of the connection between a television network and its public, especially for a public service broadcaster such as the public broadcaster.
"This failing had the possibility to erode the significantly high degrees of confidence that viewers would have invested in a BBC factual programme about the Israel-Gaza war."
The programme was pulled from the online platform in the month of February after the narrator's family links emerged, and in July an internal BBC review determined it violated the organization's editorial guidelines on factual correctness.
A corporation official said: "The authority's determination is in line with the conclusions of Peter Johnston's review, that there was a serious error in the programme in relation to the corporation's content standards on truthfulness, which reflects regulation 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we agree with the regulator's ruling in its entirety. We will comply with the directive as soon as the date and wording are confirmed."
