The British broadcaster engaged in a "serious breach" of industry standards by omitting to mention that the narrator of a documentary about Gaza was the offspring of a Hamas official, according to regulatory body Ofcom.
An investigation by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "substantially inaccurate".
The chief executive of the broadcaster had previously apologised, saying there had been "a major oversight in relation to accuracy".
The authority has instructed the BBC to broadcast a prime-time statement about its decisions.
"Given this constitutes a significant violation of our code, we are instructing the broadcaster to air a message of our findings against it on BBC Two at nine o'clock in the evening, with a timing to be determined," it said.
'Potential to Damage Confidence'
The watchdog's statement stated: "Our investigation determined that the film's failure to disclose that the presenter's parent served in a position in the Hamas-administered authority was significantly deceptive.
"Consequently that the public did not have vital facts which may have been highly relevant to their assessment of the presenter and the information he presented.
"Trust is at the core of the relationship between a media organization and its public, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the potential to undermine the exceptionally strong levels of confidence that viewers would have placed in a BBC factual programme about the Israel-Gaza war."
The programme was pulled from iPlayer in the month of February after the boy's family links came to light, and in the month of July an broadcaster's internal assessment determined it violated the corporation's content policies on factual correctness.
A BBC spokesperson said: "The Ofcom ruling 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 factual correctness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we agree with the authority's determination in its entirety. We will follow the directive as soon as the date and wording are determined."
