The Duke of Edinburgh was uninjured, but Sky’s royal correspondent says the 97-year-old has seen a doctor as a precaution.
Five fatal accidents have taken place in six years on the road where the Duke of Edinburgh crashed driving close to Sandringham Estate.
Norfolk County Council is set to discuss the safety of the section of the B1439 less than 24 hours after 97-year-old Prince Philip’s Land Rover overturned.
The meeting at 10am on Friday had already been set up to discuss reviewing the current speed limit after 40 accidents – including five fatal – happened on that stretch of road between May 2012 and May 2018.
Councillors will vote on whether to reduce the speed limit from 60mph to 50mph.
Prince Philip was breathalysed – along with the driver of a Kia that was also involved in the collision – in line with police policy after the crash just before 3pm on Thursday.
Both breathalyser tests were negative, Norfolk Police said.
Buckingham Palace confirmed Prince Philip was at the wheel but said he was unhurt.
Although the duke was checked by a doctor, he did not go to hospital and has since returned to Sandringham.
Roy Warne, 75, witnessed the crash and said Philip screamed about pain his legs after the collision.
He told The Sun the Land Rover “came across the A149 like a somersault. It was turning on its side over and over.”
Mr Warne added: “It was frightening to see a powerful car rolling like that.
“I rushed to the other car first – there was smoke coming out as if it may explode.
“There was a baby in the back seat screaming.”
The barrister said he later heard the Duke told police officers he had been “dazzled by the sun”.
Mr Warne, who helped Philip out of his overturned Land Rover, said: “I looked down and had the Prince’s blood on my hands.
“All I could think is, thank goodness there wasn’t more.”
An eyewitness told the Daily Telegraph: “The Duke looked distraught.
“He looked quite shocked and shaken.”