The BBC committed a "major breach" of media regulations by not revealing that the narrator of a programme about the Gaza conflict was the son of a Hamas representative, as ruled by regulatory body Ofcom.
An probe by the media regulator into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The head of the BBC had earlier expressed regret, saying there had been "a serious error in relation to factual correctness".
The authority has directed the BBC to air a prime-time statement about its decisions.
"Given this constitutes a significant violation of our regulations, we are ordering the BBC to transmit a announcement of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be confirmed," the statement read.
'Potential to Damage Confidence'
The authority's statement declared: "Our investigation found that the film's omission to reveal that the presenter's parent occupied a post in the Hamas-controlled government was materially misleading.
"It meant that the audience did not have essential details which may have been highly relevant to their assessment of the voice and the information he presented.
"Confidence is at the center of the connection between a television network and its audience, notably for a national broadcasting corporation such as the public broadcaster.
"This error had the possibility to undermine the very considerable levels of trust that the public would have put in a factual film from the broadcaster about the Gaza conflict."
The programme was removed from the BBC's streaming service in last February after the boy's familial connections were revealed, and in the month of July an broadcaster's internal assessment concluded it violated the broadcaster's content policies on accuracy.
A representative for the broadcaster stated: "The authority's determination is in agreement with the findings of the corporation's inquiry, that there was a serious error in the documentary in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept the regulator's ruling in its entirety. We will adhere to the directive as soon as the date and language are finalised."
