Drivers are being advised to avoid the A47 near Brundall following an accident.
The road is partially blocked near Cucumber Lane.
Traffic is moving slowly approaching the Brundall roundabout, with queues on the eastbound carriageway to Church Road.
On the westbound carriageway traffic is moving at an average speed of 10mph.
First bus services X1 and X11 have been delayed as a result.
For up-to-date information about the county's roads, visit our LIVE Norfolk traffic map.
Join our Norfolk Travel Information group on Facebook for all the latest traffic news in Norfolk.
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