The BBC was found to have committed a "serious breach" of media regulations by failing to disclose that the narrator of a film about the Gaza situation was the offspring of a Hamas representative, according to regulatory body Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The chief executive of the broadcaster had previously apologised, noting there had been "a serious error in relation to factual correctness".
Ofcom has directed the corporation to broadcast a evening declaration about its findings.
"Since this amounts to a serious breach of our regulations, we are directing the broadcaster to transmit a message of our determinations against it on BBC Two at nine o'clock in the evening, with a schedule to be confirmed," the statement read.
'Risk to Damage Credibility'
The watchdog's report stated: "Our probe concluded that the documentary's omission to reveal that the narrator's father occupied a position in the Hamas-controlled administration was substantially inaccurate.
"Consequently that the public did not have critical information which may have been extremely pertinent to their judgment of the presenter and the information he presented.
"Confidence is at the center of the connection between a television network and its public, notably for a state-funded media outlet such as the public broadcaster.
"This oversight had the possibility to undermine the very considerable levels of credibility that the public would have put in a factual film from the broadcaster about the conflict in Gaza."
The programme was removed from iPlayer in the month of February after the boy's familial connections came to light, and in the month of July an corporation's own inquiry concluded it infringed the broadcaster's journalistic standards on truthfulness.
A BBC spokesperson said: "The authority's determination is in line with the findings of Peter Johnston's review, that there was a significant failing in the film in relation to the corporation's content standards on truthfulness, which reflects clause 2.2 of the regulator's media standards.
"We have apologised for this and we accept Ofcom's decision in complete. We will follow the penalty as soon as the schedule and wording are finalised."
