Two people have been arrested after a car crashed into concrete bollards along a road near Billingshurst.
Emergency services have closed part of the A29 Stane Street after a Ford Fiesta left the road and crashed at the junction with Adversane Lane, near the Blacksmith’s Arms pub.
Police said a woman was seriously injured in the collision and two men ran from the scene.
For more details on the crash see our previous story: Police helicopter called to Billingshurst after serious crash
Police said two men had since been arrested on suspicion of driving offences.
Officers are still at the scene and the road remains closed between the B2133 Adversane Lane and Henris Lake junctions.
Motorists are being advised to avoid the area with delays being reported.
To keep up to date with all the latest details in this story see: Billingshurst crash and search: What we know so far
Anyone with any information is asked to contact police online (https://www.sussex.police.uk/contact/af/contact-us/) or by phoning 101, quoting Operation Arunside.