The BBC committed a "major breach" of media regulations by failing to disclose that the voice of a documentary about the Gaza situation was the son of a Hamas representative, according to British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into Gaza: How to Survive a Warzone has concluded that the documentary was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, saying there had been "a major oversight in relation to factual correctness".
The regulator has directed the BBC to air a prime-time declaration about its decisions.
"Since this amounts to a serious breach of our rules, we are instructing the broadcaster to broadcast a statement of our determinations against it on the BBC's second channel at 21:00, with a timing to be confirmed," the statement read.
'Risk to Undermine Credibility'
The authority's report stated: "Our investigation concluded that the film's omission to reveal that the voice's father held a position in the Hamas-administered administration was significantly deceptive.
"It meant that the audience did not have critical information which may have been highly relevant to their evaluation of the presenter and the details he presented.
"Confidence is at the core of the bond between a broadcaster and its public, particularly for a state-funded media outlet such as the public broadcaster.
"This failing had the potential to damage the exceptionally strong levels of confidence that viewers would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was withdrawn from the online platform in last February after the presenter's family links emerged, and in the month of July an broadcaster's internal assessment determined it infringed the corporation's content policies on truthfulness.
A representative for the broadcaster stated: "The authority's determination is in agreement with the results of the corporation's inquiry, that there was a serious error in the documentary in relation to the broadcaster's journalistic policies on accuracy, which reflects clause 2.2 of the regulator's media standards.
"We have apologised for this and we comply with Ofcom's decision in its entirety. We will follow the directive as soon as the schedule and wording are confirmed."
