A man broke both ankles when he crashed his car into a tree near Thetford.
The 21-year-old was driving a black Vauxhall Vectra when it left the A1088 at Brettenham, around 900 metres from the junction with the A1066 at 3.17am on May 7.
He was the only person in the car and was taken to the West Suffolk University Hospital.
Anyone with information should contact PC Philip Higgins at Wymondham Roads Policing on 101.
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