An image of a Norfolk Police Car. Phot: Denise Bradley (Image: Archant)
Police are asking motorists to avoid part of the A47 following a serious crash.
The A47 is shut in both directions between the A10 and the A1122 near King's Lynn.
Emergency services are currently on the scene.
Norfolk Police tweeted at 5.41pm: 'A47 at Constitution Hill, Lynn, Swaffham bound closed following serious collision involving coach and van.
'Emergency services on scene - motorist advised to avoid the area.'
Highways England said the closure is expected to remain in place for a number of hours whilst collision investigation work takes place.
Check our live travel map for updates: edp24.co.uk/motoring/live-traffic-map
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