The main road between Falmouth and Helston was partially blocked this morning following a crash.
Traffic remained heavy after building up in both directions for some time afterwards, as a result of the crash on the A394.
This is understood to have taken place near the Seworgan turn off.
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Traffic sensors showed heavy congestion between Edgucmbe and Carnebone.
Both lanes fully reopened just before 11am, but there remained some build up for a while as a result of the earlier blockage and resulting queues.
The surrounding back roads were also said to be heavily built up with vehicles, as drivers tried to find alternative routes.
A police spokesperson said: "Police were called to the A394 Helston at around 9am this morning with a report of a single vehicle RTC.
"Occupants were checked over by an ambulance crew, no injuries were reported.
"Vehicle recovery was required."
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