The British broadcaster was found to have committed a "serious breach" of broadcasting rules by not revealing that the presenter of a film about Gaza was the offspring of a Hamas administrator, according to regulatory body Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has concluded that the film was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a significant failing in relation to truthfulness".
Ofcom has ordered the BBC to air a prime-time statement about its decisions.
"As this represents a serious breach of our regulations, we are instructing the broadcaster to air a announcement of our determinations against it on BBC2 at nine o'clock in the evening, with a date to be finalised," the statement read.
'Potential to Damage Confidence'
The authority's statement declared: "Our investigation concluded that the programme's omission to reveal that the voice's parent occupied a post in the Hamas-run administration was significantly deceptive.
"This implied that the audience did not have vital facts which may have been highly relevant to their evaluation of the narrator and the information he provided.
"Credibility is at the heart of the relationship between a broadcaster and its public, notably for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the potential to undermine the very considerable levels of credibility that the public would have placed in a factual film from the broadcaster about the Gaza conflict."
The programme was withdrawn from the BBC's streaming service in the month of February after the boy's family links came to light, and in this past July an internal BBC review found it breached the organization's content policies on factual correctness.
A BBC spokesperson stated: "The regulator's decision is in accordance with the conclusions of Peter Johnston's review, that there was a significant failing in the programme in relation to the corporation's content standards on accuracy, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the regulator's ruling in its entirety. We will follow the penalty as soon as the timing and wording are determined."
