Drivers have been warned to avoid the area following a crash between two cars that has blocked the road between Diss and Attleborough.
Emergency services were called at 3.50pm to reports of a collision involving two cars on the B1077 near the village of Winfarthing.
Police remain at the scene of the crash on Mile Road that has involved a Fiat and a Peugeot.
Eyewitnesses said the accident had occurred in the Short Green area, just outside Winfarthing, where road splits off to Banham at a sharp 90 degree bend.
Norfolk Police said in a tweet: "Road blocked owing to RTC - this route is already a diversion route - please avoid the area where possible - we are on scene dealing."
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