A pedestrian has suffered critical injuries after being hit by a car on the A27 this morning (Thursday, 9).
It happened on Old Shoreham Road in between Lancing Manor Roundabout and Coombes road around 6am.
The A27 is currently closed eastbound along to Shoreham airport from Lancing Manor Roundabout.
Police are expecting the road to be closed until at least lunchtime today.
There are currently long delays around Worthing, Lancing and Shoreham.
There are diversions via the A2025 Grinstead Lane, A259 through Lancing to Shoreham then the A283 northbound.