The doctor of a man with severe amnesia said staff "were no closer to his identity" and were still appealing for information from anyone who might know he who is.
Dr Manaan Kar Ray told Good Morning Britain "Robert", as doctors are calling him, is "very keen, if anyone knows him, that they might be able to help him piece his life together."
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A robot was sent to the scene as police closed the motorway in both directions between Northampton and Milton Keynes.
Mostly dry after a misty start in places
A police officer has suffered potentially life threatening injuries after being assaulted in Doncaster.