A two vehicle collision in Wool partially blocked the A352 both ways.
The incident was reported to Dorset Police at around 10.12am on Friday.
It took place at East Burton Road, near to the train station.
A spokeswoman for Dorset Police confirmed one of the vehicles involved was a minibus.
South Western Ambulance Service also attended the scene.
One patient with injuries was taken to Dorset County Hospital but the injuries were not thought to be serious.