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".
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The body of Kim Jong-Nam has been returned to North Korea, more than six weeks after he was killed in a targeted attack.
Public sector organisations will have to publish information on any gender pay gap from Friday, in a bid to tackle discrimination.
Remarkably mild night for March