The A30 near Hayle has reopened but traffic is still slow following a lunchtime crash at the Loggans Roundabout.
Police were called just before 12.20pm to reports of a single vehicle collision on the A30.
A police spokesperson said: "A mini cooper was reportedly involved in a single car collision and the vehicle was smoking. Due to this, fire services were called.
"Ambulance was also called and a man was taken to hospital with various aches and pains and possible shock."
The road was closed in both directions, although traffic is now moving again.
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