The BBC was found to have committed a "serious breach" of broadcasting rules by omitting to mention that the presenter of a documentary about the Gaza situation was the offspring of a Hamas representative, as determined by regulatory body Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "significantly deceptive".
The BBC's director general had previously apologised, saying there had been "a serious error in relation to truthfulness".
The authority has instructed the BBC to transmit a peak-time statement about its findings.
"As this represents a significant violation of our code, we are ordering the BBC to broadcast a announcement of our conclusions against it on BBC2 at nine o'clock in the evening, with a date to be confirmed," the regulator stated.
'Potential to Damage Credibility'
The watchdog's report stated: "Our probe concluded that the documentary's lack of disclosure that the presenter's male guardian occupied a post in the Hamas-controlled government was substantially inaccurate.
"This implied that the viewers did not have critical information which may have been very significant to their assessment of the presenter and the details he shared.
"Confidence is at the core of the connection between a media organization and its viewers, especially for a public service broadcaster such as the public broadcaster.
"This oversight had the risk to undermine the very considerable amounts of confidence that audiences would have put in a BBC factual programme about the conflict in Gaza."
The programme was pulled from the online platform in February after the presenter's personal associations were revealed, and in July an corporation's own inquiry determined it infringed the organization's journalistic standards on truthfulness.
A BBC spokesperson said: "The Ofcom ruling is in agreement with the findings of Peter Johnston's review, that there was a significant failing in the documentary in relation to the BBC's Editorial Guidelines on factual correctness, which corresponds to regulation 2.2 of the regulator's media standards.
"We have apologised for this and we agree with Ofcom's decision in full. We will follow the directive as soon as the schedule and language are confirmed."
