One of Bristol's busiest roads was closed for nearly three hours after an ambulance crashed into four parked cars.
The Great Western Ambulance Service (GWAS) vehicle was transferring a patient at the time and was not on an emergency call.
Emergency services were called to the A4, Portway, at 1430 BST following reports of the accident.
Another ambulance took the patient, who was not injured, to hospital.
A GWAS spokesman said: "One of our ambulances was taking a patient to the Bristol Royal Infirmary (BRI) - the vehicle wasn't on an emergency run so didn't have its blue lights on.
"The patient was not injured but a relative travelling with them complained of a slight neck pain so as a precaution was taken to the BRI in another ambulance along with the patient.
"These sorts of incidents are thankfully very rare, when they do happen we, and possibly the police, thoroughly investigate them," he added.
Diversions were put in place and traffic was reported as heavy as the evening rush hour started.
The road reopened at 1715 BST.