A road has been closed after a pedestrian was left with head injuries in a car crash.

The A1075 Norwich Road in Thetford was closed by police by the BP garage by the Churchill Road junction after they were called to the scene at 10.30am today.

A man was hit by a silver Rover 45 Impression on the busy road, and is being treated for serious head injuries at West Suffolk Hospital. An air ambulance was on the scene at 11am but did not take the casualty.

Traffic is being diverted down Churchill Road.

UPDATE: The road was reopened at 3pm.

Eastern Daily Press: An air ambulance leaves the scene of an accident on the Norwich Road in Thetford. PHOTO: Conor MatchettAn air ambulance leaves the scene of an accident on the Norwich Road in Thetford. PHOTO: Conor Matchett (Image: Archant)

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Eastern Daily Press: Emergency services at the scene of an accident on Norwich Road in Thetford. PHOTO: Conor MatchettEmergency services at the scene of an accident on Norwich Road in Thetford. PHOTO: Conor Matchett (Image: Archant)

Eastern Daily Press: Emergency services at the scene of an accident on Norwich Road in Thetford. PHOTO: Conor MatchettEmergency services at the scene of an accident on Norwich Road in Thetford. PHOTO: Conor Matchett (Image: Archant)