The BBC was found to have committed a "serious breach" of broadcasting rules by not revealing that the voice of a programme about the Gaza situation was the child of a Hamas official, as determined by UK media regulator Ofcom.
An inquiry by Ofcom 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, stating there had been "a major oversight in relation to accuracy".
Ofcom has directed the BBC to broadcast a peak-time statement about its findings.
"As this represents a serious breach of our rules, we are instructing the BBC to air a announcement of our determinations against it on BBC Two at 21:00, with a timing to be confirmed," the statement read.
'Risk to Undermine Confidence'
The authority's report said: "The inquiry we conducted determined that the programme's lack of disclosure that the presenter's parent occupied a role 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 voice and the content he presented.
"Credibility is at the center of the relationship between a broadcaster and its audience, especially for a public service broadcaster such as the public broadcaster.
"This oversight had the possibility to undermine the significantly high levels of confidence that the public would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The film was pulled from iPlayer in last February after the presenter's familial connections emerged, and in the month of July an corporation's own inquiry concluded it violated the corporation's content policies on factual correctness.
A BBC spokesperson commented: "The Ofcom ruling is in accordance with the findings of the internal assessment, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept Ofcom's decision in full. We will comply with the directive as soon as the date and language are confirmed."
