A motorist was arrested on suspicion of driving whilst under the influence of drugs after a crash on the A141.
Police are now appealing for witnesses to the collision between two cars on the A141 Isle of Ely Way at Wimblington on Monday.
The crash happened at about 2.50am near the junction with Manea Road.
It involved a silver BMW coupe and a black Kia. The driver of the Toyota, a man in his 60, suffered slight injuries and was taken to Hinchingbrooke Hospital.
The driver of the BMW, 28-year-old man from Chatteris, was arrested on suspicion of driving while under the influence of drugs and dangerous driving and released on bail.
Officers are keen to speak to anyone who saw the collision or either vehicle involved just prior.
Anyone with information should contact PC Jim Norton at the road policing unit on 101.
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