The BBC was found to have committed a "significant breach" of broadcasting rules by not revealing that the voice of a documentary about Gaza was the son of a Hamas representative, as determined by British broadcasting authority Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, saying there had been "a major oversight in relation to accuracy".
The regulator has directed the BBC to transmit a prime-time statement about its findings.
"Given this constitutes a significant violation of our rules, we are ordering the corporation to air a announcement of our findings against it on BBC2 at 21:00, with a date to be determined," the regulator stated.
'Risk to Damage Credibility'
The watchdog's statement declared: "The inquiry we conducted found that the programme's omission to reveal that the presenter's father served in a role in the Hamas-controlled authority was substantially inaccurate.
"This implied that the audience did not have essential details which may have been extremely pertinent to their assessment of the narrator and the content he presented.
"Confidence is at the center of the relationship between a broadcaster and its audience, especially for a national broadcasting corporation such as the BBC.
"This failing had the potential to erode the very considerable amounts of trust that the public would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from the online platform in last February after the narrator's personal associations emerged, and in this past July an internal BBC review concluded it violated the organization's content policies on accuracy.
A BBC spokesperson said: "The regulator's decision is in line with the results of Peter Johnston's review, that there was a major oversight in the programme in relation to the corporation's content standards on truthfulness, which aligns with Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we agree with the regulator's ruling in its entirety. We will comply with the sanction as soon as the date and wording are determined."
