Police say a member of the public could hold a "vital clue" into the brutal murder of an 83-year-old man who was stabbed to death as he walked his dogs.

The man, who had been walking with the animals in a remote woodland area in Norfolk, was stabbed repeatedly in the head and neck on Saturday morning.

His body was found close to The Street, near a pig and poultry farm by a passer-by who contacted the police at around 10.45am.

The victim had driven to the wooded area near the Fiveways Junction – close to the village of East Harling – in his Red Skoda Fabia.

He is understood to have regularly walked his dogs in the area – which is popular with dog walkers and families – at around the same time every day.

Officers are appealing for witnesses who may have seen the man in his car or walking with his dogs between 9am and 11am.

Residents have also been asked to check their bins and garden waste for bloody clothing or a knife.

Chief Superintendent Mike Fawcett said he understands the shock of residents that a murder with this level of brutality can happen to an elderly man going about his daily business in our county.

He asked for people to report any people or a vehicle that looks out of place, and appealed for businesses near the area to save and hand in any CCTV footage from Saturday 5 August.

Motorists travelling in the area between 6am and 9pm that day have also been asked to provide any dashcam footage they captured.

While the identity of the victim is known to police, his name has not yet been officially revealed.

A married father of two, he is described as white, of slim build, 5ft 7ins tall, with grey hair and glasses.

He was wearing blue/grey trousers, a black t-shirt and brown walking boots at the time he was killed.

The two dogs – a 10-year-old foxhound cross and 13-year-old trailhound cross – were found alive, close to the body of their owner.

Police are yet to establish a motive for the killing, no murder weapon has been found and no arrests have been made.

Anyone with information should contact Norfolk Police immediately on 101, quoting Operation Graduate.

(c) Sky News 2017: Hunt for ‘vital clue’ after elderly dog walker stabbed to death in Norfolk