Police are currently on the scene of an accident in Thetford, and are advising motorists to avoid the area.
They were called at 7.06am to Mundfund Road, where a silver Galaxy and a silver Citroen Zara had crashed.
A police spokesman said the road was blocked and vehicles were being stopped from accessing the A11 at the Norwich Road roundabout.
An ambulance crew is also on the scene, but it's not yet clear if there are any injuries.
At 7.40am Breckland Police tweeted: 'Officers on scene at an RTC, Mundford Road, Thetford. Road is totally blocked. Please avoid the area and seek alternative routes. Thank you.'
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