Icy conditions caused havoc for drivers as snow fell across Sussex for the first time this winter.
On the A23 at Handcross Hill, a driver was trapped in her car for more than an hour when it skidded on black ice amid scenes of chaos.
More than ten cars were involved in crashes along the road, which police likened to a "skating rink".
Firefighters from Crawley used cutting equipment to free the 25-year-old driver from her car after the smash on Saturday morning.
She was taken to hospital with leg injuries.
The spate of crashes happened at about 7am on the southbound stretch of road after temperatures plunged overnight.
The carriageway between Pease Pottage and Handcross was closed for about three hours while emergency services cleared wreckage from the road.
A Highways Agency spokesman said the accidents occurred an hour-and-a-half before the stretch of road had been gritted.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article