The BBC engaged in a "serious breach" of industry standards by failing to disclose that the presenter of a documentary about the Gaza situation was the son of a Hamas representative, as determined by UK media regulator Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The chief executive of the broadcaster had previously apologised, stating there had been "a major oversight in relation to truthfulness".
The authority has ordered the corporation to transmit a prime-time statement about its decisions.
"Since this amounts to a significant violation of our regulations, we are ordering the corporation to broadcast a message of our determinations against it on BBC2 at nine o'clock in the evening, with a schedule to be finalised," the statement read.
'Possibility to Undermine Trust'
The regulator's report declared: "The inquiry we conducted determined that the documentary's omission to reveal that the voice's father held a position in the Hamas-controlled authority was substantially inaccurate.
"Consequently that the audience did not have vital facts which may have been very significant to their evaluation of the voice and the content he presented.
"Confidence is at the heart of the bond between a broadcaster and its public, notably for a public service broadcaster such as the public broadcaster.
"This oversight had the possibility to erode the very considerable amounts of credibility that viewers would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The film was withdrawn from the online platform in last February after the narrator's familial connections emerged, and in the month of July an corporation's own inquiry determined it violated the corporation's content policies on factual correctness.
A corporation official stated: "The Ofcom ruling is in line with the findings of the corporation's inquiry, that there was a serious error in the programme in relation to the broadcaster's journalistic policies on accuracy, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with Ofcom's decision in full. We will follow the sanction as soon as the schedule and wording are determined."