The A27 West is temporarily closed between Fontwell and Tangmere due to an accident.
A car and a motorcycle are reported to have been in a collision on the A27 at Crockerhill between Tangmere and Fontwell.
Emergency services were called to the scene at 9.28am on Wednesday (September 19).
The road is partially closed to traffic at the Fontwell roundabout and some diversions are being put into place.
Long delays have been reported.