Hampshire Police are continuing to appeal for information following a serious road traffic collision on the eastbound carriageway of the A303 on Friday 12 May.
Police were called at 4.48pm to a report of a two vehicle collision involving a Citroen C1 and a Ford Focus on the A303 near Andover between the junctions of the A343 and A3057.
The passenger of the Citroen, a 23-year-old woman from Thatcham, remains at Southampton General Hospital where she is being treated for life threatening injuries. The driver of the Citroen, a 21-year-old woman from Andover, is also being treated in hospital but for less serious injuries.
PC James Gallimore, said: “We believe a dark coloured vehicle left the layby near to where the collision happened at around the time of the incident. We are particularly keen to speak to the driver of this car. We’d also like to speak to anyone who was driving in the area who may have a dash cam or anyone who thinks they saw this vehicle.”
Anyone with information should call 101 quoting Operation Yard.