The BBC committed a "major breach" of media regulations by failing to disclose that the voice of a programme about the Gaza situation was the offspring of a Hamas administrator, according to regulatory body Ofcom.
An probe by the media regulator into Gaza: How to Survive a Warzone has determined that the documentary was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, noting there had been "a major oversight in relation to truthfulness".
The regulator has ordered the corporation to transmit a prime-time declaration about its findings.
"As this represents a significant violation of our code, we are ordering the broadcaster to transmit a statement of our conclusions against it on the BBC's second channel at 9pm, with a timing to be determined," the statement read.
'Possibility to Undermine Credibility'
The watchdog's statement said: "Our probe found that the programme's omission to reveal that the presenter's father served in a post in the Hamas-run government was materially misleading.
"This implied that the public did not have vital facts which may have been highly relevant to their judgment of the voice and the content he presented.
"Trust is at the center of the bond between a broadcaster and its public, particularly for a public service broadcaster such as the public broadcaster.
"This failing had the possibility to damage the very considerable degrees of trust that the public would have placed in a factual film from the broadcaster about the Gaza conflict."
The film was pulled from the online platform in February after the boy's personal associations were revealed, and in the month of July an corporation's own inquiry found it infringed the broadcaster's content policies on truthfulness.
A representative for the broadcaster stated: "The regulator's decision is in accordance with the findings of the internal assessment, that there was a major oversight in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which aligns with regulation 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we agree with the authority's determination in full. We will adhere to the directive as soon as the timing and wording are confirmed."
