Two people were taken to hospital after a head on crash, withpolice appealing for witnesses and footage.
Sussex Police said: “We are appealing for witnesses and information following a head on collision on the A272 between Piltdown and Newick.
“The incident took place on Tuesday 9 September at around 4.40pm.
“It was reported that a black Audi A3 collided with a red Toyota Aygo in the opposite carriageway.
“Both drivers were taken to hospital to be treated for their injuries.
“Officers are pursuing a number of lines of inquiry in an ongoing investigation.
“(They) would like to identify the driver of another vehicle that is believed to have been within close proximity to the incident but did not remain at the scene.
“We also encourage anyone who witnessed the incident or who has relevant information such as CCTV, mobile or dashcam footage to report it to us.
“Information can be reported by emailing collision.appeal@sussex.police.uk or by dialling 101 quoting serial 1018 of 09/09.”