A woman in her 60s has been arrested on suspicion of drink-driving after a car left the road and crashed into a waterlogged ditch.
The collision happened just after 12.30pm on a country road near Stoke-by-Nayland.
Police officers and paramedics were called to the scene.
No other vehicles were involved in the incident.
A spokeswoman for Suffolk Constabulary said: "Police were called at approximately 12.34pm to a reports of a single vehicle collision on the A134 near Assington.
"A car left the road near the B1068 and went into a ditch containing water."
The ambulance service was called to the scene as a precaution.
A 62-year-old woman was arrested on suspicion of driving with excess alcohol and taken to Bury St Edmunds police investigation centre to be interviewed.
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