The man who died earlier today following an incident in Keighley on Sunday morning has been named.
He was 31-year-old Kevin O'Brien, of Keighley.
He had been battling for his life in hospital since he was found in Oakworth Road, at about 1.45am.
A post mortem examination revealed that he died from head injuries.
Detectives are urging a woman who gave first aid to the man at the scene to come forward and they are also keen to speak to the driver of a small, dark blue hatchback car that stopped.
Anyone with information is asked to phone the incident room on 01274 373635.
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