Sussex Police are appealing for witnesses and information following a serious collision on the A22 East Grinstead.
The collision took place at around 5.20am on Tuesday 25 August.
It was reported that a black Volkswagen Polo and an articulated lorry were involved in a head-on collision.
A 32-year-old woman was taken to hospital to be treated for injuries that are believed to be life threatening.
Officers are pursuing a number of lines of enquiry to establish the full circumstances of the collision and encourage anyone who witnessed it, or who has relevant information such as dashcam footage which could aid the investigation to come forward.
Information can be reported by calling 101, or emailing collision.appeal@sussex.police.uk quoting Operation Perseus.
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