The public service broadcaster engaged in a "significant breach" of broadcasting rules by not revealing that the narrator of a documentary about Gaza was the child of a Hamas administrator, as ruled by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has found that the documentary was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, noting there had been "a major oversight in relation to accuracy".
The regulator has instructed the corporation to transmit a evening declaration about its findings.
"As this represents a serious breach of our rules, we are instructing the corporation to air a statement of our findings against it on BBC2 at nine o'clock in the evening, with a schedule to be determined," it said.
'Possibility to Undermine Credibility'
The watchdog's statement stated: "Our investigation concluded that the film's lack of disclosure that the presenter's parent occupied a role in the Hamas-run authority was materially misleading.
"It meant that the audience did not have essential details which may have been highly relevant to their evaluation of the voice and the information he presented.
"Trust is at the core of the bond between a television network and its viewers, particularly for a public service broadcaster such as the public broadcaster.
"This error had the possibility to undermine the significantly high degrees of trust that audiences would have put in a BBC factual programme about the conflict in Gaza."
The documentary was pulled from the online platform in February after the narrator's family links emerged, and in the month of July an internal BBC review determined it breached the organization's content policies on accuracy.
A BBC spokesperson said: "The authority's determination is in accordance with the findings of the internal assessment, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on factual correctness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with Ofcom's decision in its entirety. We will follow the penalty as soon as the date and language are finalised."
