A woman from Haywards Heath died at the scene of a collision on the A272 Cuckfield bypass last night, police have confirmed.
Police are appealing for witnesses to the incident at around 6.30pm, which involved three cars.
A police spokesperson said: “The 39-year-old Haywards Heath woman who was driving one of the cars, a Toyota Yaris, was treated by paramedics but sadly died at the scene.
“A 61-year-old Hurstpierpoint man who was driving a black Mercedes C63 sustained serious injuries and was taken by land ambulance to the Royal Sussex County Hospital in Brighton.
“A 39-year-old Henfield woman who was driving a silver VW Jetta was unhurt.”
Anyone who saw what happened is asked to contact Sussex Police online or by calling 101, quoting Operation Cord.