The British broadcaster was found to have committed a "major breach" of media regulations by not revealing that the presenter of a documentary about Gaza was the son of a Hamas administrator, according to UK media regulator Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has concluded that the documentary was "materially misleading".
The BBC's director general had previously apologised, noting there had been "a significant failing in relation to factual correctness".
The regulator has instructed the BBC to broadcast a evening announcement about its conclusions.
"Since this amounts to a major infringement of our code, we are ordering the BBC to broadcast a statement of our conclusions against it on BBC2 at nine o'clock in the evening, with a date to be finalised," the statement read.
'Potential to Damage Trust'
The authority's statement said: "The inquiry we conducted found that the documentary's omission to reveal that the voice's father held a position in the Hamas-administered authority was significantly deceptive.
"Consequently that the audience did not have critical information which may have been highly relevant to their assessment of the voice and the content he presented.
"Confidence is at the center of the connection 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 very considerable levels of trust that the public would have put in a factual film from the broadcaster about the Israel-Gaza war."
The programme was withdrawn from iPlayer in the month of February after the presenter's family links were revealed, and in the month of July an internal BBC review concluded it violated the corporation's content policies on accuracy.
A corporation official commented: "The regulator's decision is in agreement with the conclusions of the corporation's inquiry, that there was a major oversight in the programme in relation to the corporation's content standards on accuracy, which reflects clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with Ofcom's decision in complete. We will comply with the penalty as soon as the date and wording are confirmed."
