The public service broadcaster committed a "major breach" of media regulations by omitting to mention that the narrator of a film about Gaza was the son of a Hamas administrator, according to regulatory body Ofcom.
An investigation by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the documentary was "significantly deceptive".
The BBC's director general had already issued an apology, stating there had been "a significant failing in relation to factual correctness".
The regulator has ordered the BBC to air a evening declaration about its findings.
"Since this amounts to a major infringement of our rules, we are directing the BBC to transmit a statement of our determinations against it on BBC2 at 21:00, with a timing to be determined," the statement read.
'Possibility to Undermine Confidence'
The watchdog's announcement said: "Our probe concluded that the film's lack of disclosure that the narrator's parent held a role in the Hamas-run government was substantially inaccurate.
"It meant that the public did not have vital facts which may have been very significant to their assessment of the voice and the details he presented.
"Confidence is at the center of the relationship between a media organization and its viewers, notably for a national broadcasting corporation such as the BBC.
"This oversight had the possibility to erode the significantly high degrees of credibility that the public would have placed in a factual film from the broadcaster about the Gaza conflict."
The film was withdrawn from the BBC's streaming service in February after the presenter's family links came to light, and in the month of July an broadcaster's internal assessment concluded it violated the broadcaster's editorial guidelines on factual correctness.
A representative for the broadcaster stated: "The Ofcom ruling is in accordance with the findings of the internal assessment, that there was a major oversight in the film in relation to the BBC's Editorial Guidelines on factual correctness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with Ofcom's decision in complete. We will comply with the directive as soon as the schedule and wording are determined."
