A CAR hit the central reservation just before the entrance to the Southwick Tunnel today, spinning around in the road.
The driver of the car was arrested on suspicion of driving with excess alcohol and taken into custody.
The accident happened at 3.35pm on the westbound carriageway of the A27.
No other vehicles were involved and there is no current report of any injuries.
One westbound lane was still open and there have been delays but the Highways Agency is currently repairing the barrier.