Police were called to the A148 Holt bypass at 10.25am following reports of a collision between a car and a cyclist.
Officers have partially blocked the road that goes towards Holt.
Traffic is building around the area.
The crash follows another incident in the same area on Tuesday where a pedestrian in his 50s was hit by a lorry and died.
The East of England Ambulance Service has been contacted for comment.
Police were called to the A148 Holt bypass at 10.25am following reports of a collision between a car and a........