The BBC was found to have committed a "major breach" of media regulations by omitting to mention that the presenter of a film about Gaza was the offspring of a Hamas administrator, 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 "significantly deceptive".
The chief executive of the broadcaster had earlier expressed regret, noting there had been "a serious error in relation to truthfulness".
Ofcom has ordered the corporation to air a prime-time statement about its conclusions.
"Given this constitutes a significant violation of our regulations, we are ordering the corporation to transmit a announcement of our conclusions against it on BBC2 at 21:00, with a timing to be confirmed," the statement read.
'Risk to Undermine Trust'
The watchdog's announcement stated: "Our investigation concluded that the film's lack of disclosure that the voice's male guardian served in a position in the Hamas-controlled government was significantly deceptive.
"Consequently that the audience did not have critical information which may have been extremely pertinent to their judgment of the voice and the content he presented.
"Confidence is at the center of the bond between a media organization and its public, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This error had the risk to erode the very considerable amounts of confidence that viewers would have placed in a BBC factual programme about the conflict in Gaza."
The programme was withdrawn from iPlayer in February after the boy's familial connections emerged, and in the month of July an corporation's own inquiry concluded it breached the broadcaster's editorial guidelines on truthfulness.
A BBC spokesperson commented: "The regulator's decision is in accordance with the results of Peter Johnston's review, that there was a major oversight in the documentary in relation to the corporation's content standards on factual correctness, which reflects clause 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with the authority's determination in complete. We will comply with the sanction as soon as the timing and wording are confirmed."
