The public service broadcaster committed a "significant breach" of broadcasting rules by omitting to mention that the presenter of a documentary about the Gaza conflict was the offspring of a Hamas administrator, as determined by British broadcasting authority Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has found that the documentary was "substantially inaccurate".
The chief executive of the broadcaster had previously apologised, saying there had been "a serious error in relation to factual correctness".
The regulator has ordered the broadcaster to air a evening announcement about its findings.
"Given this constitutes a significant violation of our regulations, we are ordering the BBC to broadcast a statement of our determinations against it on BBC Two at nine o'clock in the evening, with a schedule to be confirmed," the statement read.
'Possibility to Undermine Credibility'
The watchdog's announcement stated: "Our probe determined that the programme's lack of disclosure that the voice's male guardian served in a position in the Hamas-run government was significantly deceptive.
"It meant that the viewers did not have essential details which may have been extremely pertinent to their assessment of the voice and the content he provided.
"Credibility is at the center of the connection between a television network and its viewers, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This oversight had the risk to undermine the very considerable levels of confidence that viewers would have put in a factual film from the broadcaster about the Israel-Gaza war."
The documentary was withdrawn from iPlayer in February after the boy's family links emerged, and in the month of July an broadcaster's internal assessment found it infringed the organization's editorial guidelines on truthfulness.
A BBC spokesperson stated: "The Ofcom ruling is in line with the findings of Peter Johnston's review, that there was a serious error in the film in relation to the BBC's Editorial Guidelines on truthfulness, which reflects Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we agree with Ofcom's decision in its entirety. We will adhere to the penalty as soon as the schedule and wording are finalised."
