The British broadcaster was found to have committed a "significant breach" of broadcasting rules by omitting to mention that the narrator of a film about the Gaza conflict was the offspring of a Hamas representative, according to regulatory body Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "materially misleading".
The BBC's director general had earlier expressed regret, noting there had been "a significant failing in relation to truthfulness".
Ofcom has ordered the broadcaster to broadcast a peak-time statement about its conclusions.
"Given this constitutes a significant violation of our code, we are instructing the BBC to broadcast a announcement of our findings against it on BBC2 at 21:00, with a date to be finalised," it said.
'Possibility to Erode Credibility'
The regulator's statement declared: "Our probe concluded that the film's omission to reveal that the presenter's father served in a role in the Hamas-controlled authority was materially misleading.
"It meant that the audience did not have vital facts which may have been very significant to their judgment of the narrator and the content he presented.
"Confidence is at the center of the relationship between a media organization and its public, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This oversight had the potential to undermine the significantly high levels of confidence that viewers would have invested in a factual film from the broadcaster about the conflict in Gaza."
The documentary was pulled from the BBC's streaming service in February after the presenter's personal associations were revealed, and in the month of July an broadcaster's internal assessment concluded it violated the broadcaster's content policies on accuracy.
A representative for the broadcaster said: "The Ofcom ruling is in accordance with the results of the internal assessment, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with the authority's determination in its entirety. We will follow the sanction as soon as the timing and wording are finalised."
