Emergency services were called to the collision at the junction with the B2133 Newbridge near Wisborough Green at about 1.40am. Police said when officers arrived the vehicle was on its roof and no-one was inside. A search was carried out of the area but officers said they were unable to trace the driver. The fire service - which also attended - has issued a warning over icy roads reminding road users to ‘drive safely when the temperatures drop’.️