The BBC engaged in a "significant breach" of broadcasting rules by failing to disclose that the narrator of a film about Gaza was the child of a Hamas official, according to UK media regulator Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The BBC's director general had previously apologised, saying there had been "a major oversight in relation to accuracy".
Ofcom has directed the BBC to air a peak-time statement about its decisions.
"As this represents a significant violation of our code, we are ordering the BBC to transmit a statement of our conclusions against it on BBC2 at 9pm, with a timing to be finalised," it said.
'Risk to Undermine Trust'
The watchdog's report declared: "Our investigation determined that the documentary's omission to reveal that the presenter's male guardian occupied a role in the Hamas-run government was significantly deceptive.
"It meant that the audience did not have critical information which may have been extremely pertinent to their judgment of the narrator and the content he provided.
"Trust is at the center of the relationship between a media organization and its public, especially for a public service broadcaster such as the BBC.
"This oversight had the risk to damage the very considerable levels of trust that the public would have put in a documentary produced by the BBC about the Gaza conflict."
The programme was withdrawn from the online platform in the month of February after the presenter's familial connections emerged, and in July an internal BBC review concluded it breached the broadcaster's content policies on truthfulness.
A corporation official said: "The Ofcom ruling is in accordance with the conclusions of the internal assessment, that there was a major oversight in the film in relation to the BBC's Editorial Guidelines on accuracy, which aligns with Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept the regulator's ruling in complete. We will comply with the penalty as soon as the date and wording are determined."
