The air ambulance has been called after a lorry was involved in a serious collision at Mundford near Brandon.
A spokesman for Norfolk Police said officers were called at around 8.40am this morning to the A1065 to reports of a single vehicle collision involving a lorry.
The air ambulance is currently on the scene, according to the spokesman.
The road has been closed in both directions at the A1065 Mundford roundabout and diversions will be put in place.
Norfolk Fire and Rescue Service sent one appliance to the scene just after 9am.
Firefighters assisted police and freed a trapped person from the lorry.
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