The BBC committed a "significant breach" of industry standards by failing to disclose that the narrator of a documentary about the Gaza conflict was the child of a Hamas administrator, as ruled by UK media regulator Ofcom.
An inquiry by Ofcom into the programme Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The head of the BBC had already issued an apology, saying there had been "a significant failing in relation to accuracy".
Ofcom has directed the broadcaster to broadcast a evening declaration about its decisions.
"Given this constitutes a significant violation of our rules, we are ordering the corporation to broadcast a announcement of our findings against it on BBC Two at nine o'clock in the evening, with a timing to be determined," it said.
'Risk to Erode Credibility'
The regulator's announcement said: "The inquiry we conducted found that the documentary's omission to reveal that the narrator's male guardian occupied a role in the Hamas-run government was significantly deceptive.
"It meant that the public did not have essential details which may have been extremely pertinent to their judgment of the presenter and the details he presented.
"Trust is at the center 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 risk to damage the very considerable levels of credibility that the public would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The film was removed from the BBC's streaming service in the month of February after the boy's personal associations were revealed, and in this past July an broadcaster's internal assessment found it violated the corporation's editorial guidelines on truthfulness.
A BBC spokesperson stated: "The regulator's decision is in accordance with the results of the corporation's inquiry, that there was a serious error in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which aligns with clause 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the regulator's ruling in its entirety. We will follow the sanction as soon as the timing and wording are finalised."
