A refuse lorry overturned on the A1101 at Flempton at 11am this morning.
The incident was attended by emergency services and the air ambulance.
Fire crews released one person who was trapped in the freighter.
One male casualty was taken to Addenbrookes hospital, Cambridge with serious arm injuries.
The other two members of the crew were unhurt but were taken to West Suffolk Hospital for checks.
The refuge freighter overturned at the entrance to Lackford composting plant on the A1101 at Flempton.
No other cars were involved in the incident and the A11 has now reopened.
Police have asked anyone who witnessed the incident to call the Suffolk Police’s Serious Collision Investigation Team on 101.