The road was partially blocked at the roundabout by Durrington Cemetery due to a HGV lorry and a small white van colliding with each other at around 10am today (March 9).
Part of the A24 was blocked due to the accident and traffic has built up on both the A27 and the A24 as a result.
There was congestion to the Coach and Horses pub eastbound, and traffic back to the Toby Carvery restaurant westbound.
A South East Coast Ambulance Service spokesman said they sent one ambulance to the scene and treated the driver of the van, who had facial injuries.
He was then taken into Worthing Hospital for further treatment, the spokesman said.
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The scene of the incident. Picture: Mick Symes Photo: Mick Symes
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The scene of the incident. Picture: Mick Symes Photo: Mick Symes
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The scene of the incident. Picture: Mick Symes Photo: Mick Syme
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The scene of the incident. Picture: Mick Symes Photo: Mick Symes