The A23 is now clear after the southbound carriageway had been blocked following a five-car shunt.
Officers were called at 4.50pm today to the incident and drivers were advised to avoid the area.
Nobody was trapped and everyone is out of the vehicles, according to Sussex Police, who say there was no immediate mention of any injuries.
Highways England later confirmed that the recovery of the vehicles was complete and the road was open again.
More to follow.
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