The public service broadcaster engaged in a "major breach" of media regulations by not revealing that the presenter of a programme about the Gaza conflict was the offspring of a Hamas representative, as ruled by UK media regulator Ofcom.
An probe by Ofcom into the programme Gaza: How to Survive a Warzone has concluded that the film 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 corporation to broadcast a prime-time announcement about its findings.
"As this represents a major infringement of our regulations, we are directing the broadcaster to air a announcement of our conclusions against it on the BBC's second channel at 21:00, with a timing to be finalised," the regulator stated.
'Risk to Erode Trust'
The watchdog's announcement declared: "Our probe concluded that the documentary's omission to reveal that the narrator's parent held a position in the Hamas-run administration was significantly deceptive.
"Consequently that the viewers did not have essential details which may have been highly relevant to their evaluation of the narrator and the information he provided.
"Confidence is at the heart of the relationship between a broadcaster and its audience, notably for a public service broadcaster such as the public broadcaster.
"This oversight had the risk to damage the very considerable amounts of confidence that the public would have put in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was removed from iPlayer in last February after the boy's familial connections were revealed, and in the month of July an broadcaster's internal assessment found it infringed the broadcaster's content policies on factual correctness.
A BBC spokesperson said: "The regulator's decision 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 truthfulness, which reflects regulation 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we comply with Ofcom's decision in complete. We will adhere to the directive as soon as the timing and language are finalised."
