The public service broadcaster committed a "significant breach" of industry standards by failing to disclose that the voice of a documentary about the Gaza situation was the child of a Hamas representative, as determined by UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the documentary was "significantly deceptive".
The head of the BBC had previously apologised, noting there had been "a major oversight in relation to factual correctness".
The regulator has directed the corporation to broadcast a prime-time declaration about its findings.
"As this represents a serious breach of our code, we are instructing the corporation to air a message of our determinations against it on BBC Two at 21:00, with a date to be determined," the regulator stated.
'Potential to Erode Credibility'
The regulator's announcement said: "The inquiry we conducted determined that the programme's lack of disclosure that the presenter's father served in a post in the Hamas-run authority was significantly deceptive.
"This implied that the public did not have essential details which may have been highly relevant to their evaluation of the presenter and the details he shared.
"Trust is at the core of the connection between a television network and its viewers, notably for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the risk to erode the very considerable amounts of credibility that audiences would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was withdrawn from iPlayer in the month of February after the boy's family links were revealed, and in the month of July an internal BBC review determined it infringed the broadcaster's content policies on accuracy.
A BBC spokesperson commented: "The Ofcom ruling is in line with the conclusions of the internal assessment, that there was a major oversight in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which aligns with regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we comply with the authority's determination in complete. We will comply with the sanction as soon as the timing and wording are determined."
