The British broadcaster committed a "major breach" of broadcasting rules by not revealing that the voice of a film about the Gaza situation was the child of a Hamas representative, according to regulatory body Ofcom.
An investigation by Ofcom into Gaza: How to Survive a Warzone has determined that the documentary was "materially misleading".
The chief executive of the broadcaster had previously apologised, stating there had been "a significant failing in relation to factual correctness".
Ofcom has ordered the broadcaster to transmit a evening declaration about its findings.
"Given this constitutes a major infringement of our regulations, we are ordering the broadcaster to broadcast a announcement of our conclusions against it on the BBC's second channel at 9pm, with a schedule to be confirmed," the statement read.
'Potential to Erode Credibility'
The authority's announcement said: "Our probe concluded that the film's lack of disclosure that the presenter's male guardian held a role in the Hamas-run administration 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 content he presented.
"Credibility is at the center of the connection between a broadcaster and its viewers, notably for a national broadcasting corporation such as the British Broadcasting Corporation.
"This oversight had the potential to damage the very considerable degrees of trust that the public would have put in a factual film from the broadcaster about the Gaza conflict."
The film was withdrawn from the online platform in February after the boy's personal associations came to light, and in this past July an internal BBC review determined it breached the corporation's editorial guidelines on accuracy.
A BBC spokesperson commented: "The authority's determination is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the programme in relation to the BBC's Editorial Guidelines on accuracy, which reflects Rule 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the regulator's ruling in complete. We will comply with the penalty as soon as the timing and wording are confirmed."
