Thames Valley Police have said that forensic scientists are still searching for "evidence of Jayden in a cemetery and in a particular grave".
In a video uploaded to YouTube, Detective Chief Superintendent Andy Murray said that it was a "slow and meticulous process" and that scientists would remain there "if necessary, all night".
A man has died after the crane in which he was in fell onto the hard shoulder of the M25, Thames Valley Police have said.
The accident saw the anti-clockwise stretch between Junctions 15 and 16 closed off this morning, causing severe delays to commuters.
The road has since reopened, though one lane remains shut.
A 62-year-old man has been arrested in connection with an alleged abduction of a three-year-old girl in the Canary Islands.
Thames Valley Police arrested the man on suspicion of attempted kidnap in London last night following a public appeal.
Last year a family from Milton Keynes, Buckinghamshire, were on holiday in Costa Teguise, Lanzarote, when a man is thought to have attempted to kidnap the girl in a shopping centre.
Thames Valley police are attempting to find a man who allegedly tried to snatch three-year-old girl in Lanzarote on January 30.
The family, from Milton Keynes, Buckinghamshire, were on holiday in Costa Teguise when a man, believed to British, is said to have attempted to kidnap the girl in a shop.
The victim's father said he noticed she was missing and spotted her being led around the corner into an alleyway by a man, who was holding her by the hand. He said he shouted out and ran towards the pair, and the man immediately fled.
A short time later the family claim they saw the man, who spoke fluent English, and confronted him, but he fled before police arrived.
The family did however manage to get a picture of the alleged suspect, which police have released today. Investigating officer Detective Constable John Swallow said:
"We are working closely with the Spanish authorities and Interpol on this case and will continue to do so. We have reason to believe he may be a British citizen as he spoke fluent English and made references to being on holiday.
"I am appealing for anyone who recognises the man in the images or has information on his whereabouts to contact police as soon as possible."
A man will appear in court tomorrow charged with the murder of a grandmother found stabbed and beaten to death. 27-yearold Stewart Dale is accused of killing 55-year-old Jenny Hume. She was found early on Friday morning at a property in Horspath near Oxford.
Thames Valley Police released a tribute from Ms Hume's family: "She was a mother of three and a devoted grandmother of three. Her main interests were looking after her grandchildren and in her spare time she also enjoyed horse-riding."