A man in his 30s has suffered serious injuries to his pelvis after falling from a roof in Thetford.
The air ambulance was called to Autumn Close in Thetford just after 3pm to reports that a man had been hurt.
Police closed Hurth Way, Norwich Road and Mundford Road while the air ambulance attended, but the roads were reopened at around 4.15pm.
The Health and Safety Executive has been called to the scene.
A spokesman for Norfolk Police said the man had suffered 'serious injuries' but it was not clear if they were life threatening at this stage.
A spokesman for the East of England Ambulance Service Trust said an ambulance, three ambulance officers and the air ambulance attended.
The man was flown to Addenbrooke's Hospital in Cambridge for treatment.
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