A man in his 20s has been arrested on suspicion of attempted murder after a pensioner was stabbed in the neck.
Police were called to the incident in Hockwold just before 9am on Thursday.
A man in his 80s was initially taken to the Queen Elizabeth Hospital in King's Lynn but was transferred to Addenbrooke's Hospital in Cambridge.
He remains in a critical but stable condition and has sustained life-threatening injuries.
The man in his 20s was arrested at the scene on suspicion of attempted murder.
He was taken to Wymondham Police Station for questioning, where he remains.
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Detectives have been given extra time to question him and it has been revealed that the suspect and victim were known to each other.
The victim has been named locally as Mervyn Moulton.
Neighbours say he has lived in his home with his wife Jackie for more than 30 years.
Kantharuban Yogaraja, a shopkeeper at Hockwold Stores, said he was a regular customer who often came in for milk, bread and groceries.
Mr Yogaraja said he had popped in just a day before the attack.
"He seemed good, he was chatting to me for half an hour," he said. "He was asking me how everything was, was everything OK."
"I'm very shocked. He was a friendly man, everybody liked him."
Another neighbour, who did not wish to be named, said: "he was a lovely old boy, as a neighbour I couldn't fault him."
Maz Bye has run the Bulldog Service Station in the village with her husband Barry for more than 30 years and knew Mr Moulton and his wife.
"Both of them are really lovely people," she said. "They were always polite.
"It's very sad, we just hope he gets better soon and wish him a speedy recovery."
More to follow.
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