Cumbria police were called to a single-vehicle crash on the A596 between Workington and Maryport in the early hours of this morning.
It is understood that the Ford Fusion overturned in the crash, which happened at about 4.05am.
The driver, a 27-year-old man from Maryport, suffered minor injuries in the collision, which happened at Siddick, near the Iggesund Paperboard factory.
A spokesman for the force said the man was arrested on suspicion of driving while unfit through drugs.
He has since been released under investigation by officers.
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