Police are appealing for witnesses after a collision between a Tesco delivery van and pedestrian.
The van was travelling north on Pagham Road in Bognor when the crash occurred on Friday afternoon at 5.45pm.
A 60-year-old man from Bognor Regis was taken to Southampton Hospital with a serious head injury where he remains in a critical condition.
Police are appealing for witnesses to the incident to contact police on 101 quoting Operation Malvern.
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