Police are hoping to track down a driver who failed to stop after a four-vehicle crash.
The incident happened just before 7am on Friday on the eastbound A47 just after the Postwick junction.
It involved a silver Mercedes, a blue Peugeot 406, a grey Seat Ibiza and a white Peugeot Boxer van.
But a fifth vehicle, which joined the A47, failed to stop at the scene.
MORE: Drivers face severe delays after two rush-hour crashes on the same stretch of A47
The road was initially closed while emergency services attended the scene, but had reopened by 8.30am.
Some of those involved are believed to have suffered minor injuries.
Officers are keen to speak to anyone who saw the crash, and, in particular, the driving manner of the vehicles involved.
• If you have information, contact the roads policing team at Acle on 101.
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