The public service broadcaster was found to have committed a "serious breach" of media regulations by not revealing that the voice of a programme about Gaza was the child of a Hamas representative, according to regulatory body Ofcom.
An probe by Ofcom into the programme Gaza: How to Survive a Warzone has found that the programme was "materially misleading".
The chief executive of the broadcaster had already issued an apology, noting there had been "a serious error in relation to factual correctness".
The regulator has instructed the broadcaster to air a peak-time statement about its decisions.
"Given this constitutes a major infringement of our rules, we are instructing the BBC to broadcast a announcement of our findings against it on BBC Two at 21:00, with a timing to be determined," the statement read.
'Potential to Undermine Trust'
The regulator's report declared: "Our investigation concluded that the programme's lack of disclosure that the voice's parent served in a role in the Hamas-administered authority was significantly deceptive.
"Consequently that the public did not have critical information which may have been highly relevant to their evaluation of the presenter and the details he shared.
"Confidence is at the heart of the relationship between a broadcaster and its audience, particularly for a national broadcasting corporation such as the public broadcaster.
"This failing had the risk to erode the very considerable levels of credibility that viewers would have put in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was pulled from the online platform in the month of February after the presenter's personal associations emerged, and in the month of July an broadcaster's internal assessment found it violated the broadcaster's content policies on truthfulness.
A BBC spokesperson said: "The Ofcom ruling is in agreement with the findings of the corporation's inquiry, that there was a significant failing in the documentary in relation to the BBC's Editorial Guidelines on accuracy, which aligns with clause 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we comply with Ofcom's decision in complete. We will follow the directive as soon as the timing and language are confirmed."
