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.
More top news
Simon has Saturday's forecast for the east
Friday night's forecast for the west of the region
Friday night's forecast for the east of the region