The man in his 40s was taken to the Queen Elizabeth Hospital in King's Lynn following the crash on the A134 at Stoke Ferry.
He suffered a head injury, which was described as 'minor'.
A second patient was assessed at the scene, but did not require transport to hospital.
Reports suggest the crash involves two lorries and happened just before 5pm this afternoon.
Police closed the A134 between Stradsett and the Mundford Roundabout while emergency services were at the scene.
Diversions for drivers were put in place.
Fire crews from Downham Market, Thetford and King's Lynn were also sent to the scene.
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