The British broadcaster was found to have committed a "serious breach" of media regulations by not revealing that the narrator of a film about the Gaza conflict was the son of a Hamas official, as determined by UK media regulator Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the programme was "substantially inaccurate".
The BBC's director general had already issued an apology, stating there had been "a major oversight in relation to factual correctness".
The regulator has directed the BBC to transmit a evening announcement about its conclusions.
"Given this constitutes a significant violation of our code, we are instructing the broadcaster to air a message of our findings against it on BBC2 at 9pm, with a timing to be determined," the statement read.
'Risk to Damage Trust'
The regulator's report stated: "The inquiry we conducted determined that the documentary's failure to disclose that the presenter's parent held a role in the Hamas-run authority was materially misleading.
"It meant that the viewers did not have vital facts which may have been highly relevant to their evaluation of the presenter and the content he shared.
"Confidence is at the core of the connection between a broadcaster and its audience, particularly for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the possibility to erode the exceptionally strong degrees of confidence that viewers would have put in a factual film from the broadcaster about the conflict in Gaza."
The film was removed from iPlayer in last February after the presenter's personal associations were revealed, and in this past July an broadcaster's internal assessment determined it violated the corporation's content policies on truthfulness.
A BBC spokesperson stated: "The Ofcom ruling is in line with the conclusions of the internal assessment, that there was a significant failing in the film in relation to the corporation's content standards on factual correctness, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept the authority's determination in its entirety. We will adhere to the directive as soon as the schedule and wording are finalised."
