The BBC was found to have committed a "major breach" of broadcasting rules by not revealing that the presenter of a programme about Gaza was the child of a Hamas administrator, as ruled by British broadcasting authority Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The BBC's director general had previously apologised, stating there had been "a significant failing in relation to accuracy".
The authority has directed the BBC to air a prime-time announcement about its conclusions.
"As this represents a serious breach of our rules, we are ordering the BBC to transmit a message of our conclusions against it on BBC Two at 21:00, with a schedule to be confirmed," the regulator stated.
'Potential to Undermine Confidence'
The watchdog's statement declared: "Our investigation determined that the programme's lack of disclosure that the presenter's parent occupied a position in the Hamas-run government was materially misleading.
"It meant that the audience did not have vital facts which may have been extremely pertinent to their evaluation of the presenter and the information he presented.
"Confidence is at the core of the connection between a media organization and its viewers, especially for a public service broadcaster such as the BBC.
"This oversight had the possibility to erode the significantly high amounts of trust that audiences would have put in a factual film from the broadcaster about the Gaza conflict."
The documentary was pulled from iPlayer in the month of February after the boy's personal associations were revealed, and in the month of July an internal BBC review determined it infringed the organization's journalistic standards on truthfulness.
A BBC spokesperson commented: "The Ofcom ruling is in agreement with the results of the internal assessment, that there was a major oversight in the film in relation to the broadcaster's journalistic policies on factual correctness, which aligns with clause 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we accept the authority's determination in full. We will follow the penalty as soon as the schedule and wording are confirmed."
