The public service broadcaster engaged in a "major breach" of industry standards by not revealing that the voice of a film about the Gaza situation was the son of a Hamas official, as determined by regulatory body Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The head of the BBC had previously apologised, saying there had been "a significant failing in relation to accuracy".
The regulator has ordered the BBC to transmit a prime-time statement about its decisions.
"Since this amounts to a major infringement of our regulations, we are instructing the corporation to broadcast a announcement of our findings against it on BBC2 at 21:00, with a schedule to be determined," the regulator stated.
'Possibility to Damage Trust'
The regulator's statement declared: "Our investigation found that the film's failure to disclose that the voice's parent occupied a post in the Hamas-run authority was materially misleading.
"This implied that the audience did not have vital facts which may have been very significant to their evaluation of the narrator and the details he presented.
"Credibility is at the heart of the relationship between a broadcaster and its viewers, notably for a state-funded media outlet such as the BBC.
"This oversight had the possibility to undermine the exceptionally strong degrees of trust that the public would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The film was pulled from the online platform in last February after the presenter's personal associations were revealed, and in the month of July an corporation's own inquiry found it infringed the broadcaster's editorial guidelines on accuracy.
A representative for the broadcaster said: "The regulator's decision is in accordance with the results of the corporation's inquiry, that there was a serious error in the film in relation to the broadcaster's journalistic policies on factual correctness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the authority's determination in complete. We will adhere to the sanction as soon as the timing and language are determined."
