A police spokeswoman said they were notified of the crash near the intersection of Cumberland and St Andrew Sts about 2.15pm.
A motorcycle had "gone into the back of a car", the spokeswoman said.
A Hato Hone St John spokesman said they responded with one ambulance.
It transported one patient, in a moderate condition, to Dunedin Hospital.
Emergency services were also called to Taieri Rd about 1pm yesterday.
A police spokeswoman said it appeared a driver had experienced a medical event and crashed into a power pole.
One lane was blocked briefly.
A Fire and Emergency New Zealand spokesman said they dispatched crews from Roslyn and Willowbank stations.
No-one was trapped.
The lines company was contacted, but was stood down, the spokesman said.
A St John spokesman said an ambulance transported one patient with moderate injuries to Dunedin Hospital.
