A man and woman were air lifted to hospital after their tandem bicycle was involved in a collision with a car on the A11.
Police were called to the A11 at Newmarket Road, Barton Mills, at 3.50pm on Sunday.
The bicycle had been involved in a collision with a silver Toyota Avensis.
The two riders who had spent the day at Mildenhall Cycling Rally were airlifted to Addenbrooke’s Hospital.
The A11 northbound was shut following the accident and reopened at 7.20pm.