The public service broadcaster committed a "significant breach" of industry standards by not revealing that the narrator of a programme about Gaza was the offspring of a Hamas official, as ruled by British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the documentary was "materially misleading".
The chief executive of the broadcaster had already issued an apology, saying there had been "a serious error in relation to factual correctness".
Ofcom has instructed the corporation to air a evening announcement about its conclusions.
"Since this amounts to a serious breach of our rules, we are ordering the corporation to broadcast a statement of our determinations against it on BBC Two at 21:00, with a timing to be confirmed," it said.
'Potential to Undermine Trust'
The authority's announcement declared: "The inquiry we conducted found that the programme's failure to disclose that the voice's male guardian occupied a post in the Hamas-administered authority was substantially inaccurate.
"This implied that the public did not have critical information which may have been extremely pertinent to their evaluation of the presenter and the information he shared.
"Trust is at the center of the bond between a media organization and its viewers, notably for a state-funded media outlet such as the BBC.
"This oversight had the risk to damage the very considerable amounts of trust that the public would have put in a factual film from the broadcaster about the Israel-Gaza war."
The film was pulled from the online platform in last February after the boy's personal associations came to light, and in this past July an broadcaster's internal assessment found it breached the corporation's content policies on accuracy.
A representative for the broadcaster commented: "The authority's determination is in agreement with the conclusions of the corporation's inquiry, that there was a significant failing in the programme in relation to the corporation's content standards on factual correctness, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we accept the regulator's ruling in its entirety. We will follow the sanction as soon as the schedule and language are confirmed."
