One person was taken to Whanganui Hospital after a suspected medical event caused them to crash their vehicle in Whanganui East.
Emergency services were alerted to the incident in Boydfield St just before 5pm on Monday.
A police media spokesperson said indications suggested the driver may have had a medical event.
A St John spokesperson said an ambulance responded to the incident, taking one patient in a moderate condition to Whanganui Hospital.
