A 50-year-old woman has been airlifted to hospital after coming off her bicycle at Eyke, near Woodbridge.
A spokesman for Suffolk police said the accident, which happened at about noon on the A1152, is not believed to involve any vehicle.
The woman is believed to have suffered fractures and has initially been taken to Ipswich Hospital by air ambulance.
The road has now reopened.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here