A crash on the A27 saw the road closed in both directions between the Fontwell and Tangmere roundabout.
Update: The westbound carriageway is open and one lane of the Eastbourne carriageway is also now open.
According to travel reports, a vehicle has rolled over close to Britten’s Lane.
Emergency services are on the scene.
At 3.17pm Chichester Police tweeted: “We’re currently on scene on the #A27 between the Fontwell roundabout and the Tangmere roundabout. Both eastbound and westbound carriageways are currently closed #CV282.”
More to follow.