The public service broadcaster was found to have committed a "significant breach" of media regulations by failing to disclose that the presenter of a film about the Gaza conflict was the offspring of a Hamas representative, as ruled by UK media regulator Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "materially misleading".
The BBC's director general had earlier expressed regret, noting there had been "a major oversight in relation to factual correctness".
The regulator has directed the corporation to air a peak-time statement about its findings.
"Given this constitutes a major infringement of our rules, we are directing the BBC to broadcast a statement of our findings against it on BBC2 at nine o'clock in the evening, with a timing to be confirmed," the regulator stated.
'Possibility to Erode Trust'
The watchdog's announcement stated: "The inquiry we conducted determined that the programme's failure to disclose that the presenter's parent served in a role in the Hamas-run government was significantly deceptive.
"This implied that the public did not have essential details which may have been highly relevant to their assessment of the narrator and the content he shared.
"Confidence is at the heart of the relationship between a broadcaster and its audience, notably for a national broadcasting corporation such as the public broadcaster.
"This error had the possibility to erode the very considerable amounts of confidence that audiences would have put in a documentary produced by the BBC about the Gaza conflict."
The documentary was removed from iPlayer in the month of February after the narrator's family links were revealed, and in the month of July an broadcaster's internal assessment determined it violated the corporation's content policies on factual correctness.
A corporation official stated: "The regulator's decision is in agreement with the results of Peter Johnston's review, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we accept the regulator's ruling in its entirety. We will comply with the sanction as soon as the date and wording are confirmed."
