Andrew Marr appeared to tell the Prime Minister to “shut up” on his television programme yesterday.
Instead of admonishing him, David Cameron actually apologised to the veteran presenter as the Andrew Marr Show ended.
Earlier in the show aired on BBC One on Sunday, he had pledged to hold a referendum on the UK’s membership of the European Union in 2017.
When Mr Marr attempted to end a discussion about the schoolgirls kidnapped in Nigeria, he cut across the Conservative leader.
He appeared to say: “I, I…Prime Minister shut up I’m afraid. I’m really, really sorry, we have run out of time.”
It was unclear whether Mr Cameron heard the order. He did not seem taken aback and quickly apologised, saying “I’ve gone on, sorry”.
He might not have noticed but fellow guest Christine Amanpour, CNN’s chief international correspondent, grimaced at the camera while Mr Marr continued to sign off.
A spokesman for the BBC could not confirm exactly what was said but confirmed that Number 10 did not lodge a complaint and described the incident as a "non-issue".
She added: "There were 26 viewer complaints, which is extremely low considering the amount of people who watch the programme."
The slip came less than two weeks after the Speaker, John Bercow, cut Mr Cameron off as he was speaking to rowdy MPs at Prime Minister's Question Time.
He shouted "I haven't finished!", prompting Mr Bercow to quip that "the Prime Minister has finished and he can take it from me that he's finished".
Viewers quickly took to Twitter to check if anyone else heard the “shut up” moment.
#Marr Did Marr actually tell Cameron to shut up just then, or did I mishear?— Brian Lawton (@MrBLawton) May 11, 2014
The speaker tells him he's finished. Andrew Marr tells him to shut up. David Cameron has about as much authority as Timothy Lumsden.— Iron Lad (@The_Iron_Lad) May 11, 2014