A POLICE car was in collision with a driver of a car which had failed to stop.
The collision took place around 6.06pm near Sherborne.
A Dorset Police vehicle was following a black Peugeot GTI which failed to stop as requested.
The Peugeot left the road and collided with a road sign.
The male occupant alighted from the Peugeot and the police car, that was following, then was in collision with the driver on the B3146 at Osehill Green just off the A352 toward Glanvilles Wootton between Dorchester and Sherborne.
A 28-year-old man from Yeovil sustained a serious injury to his arm and was taken to Dorset County Hospital.
He was arrested for driving related offences.
A road closure was in place between the junction of the A352 with the B3146 and at the junction of the B3146 and Park Lane to allow specialist officers to investigate the scene.
Police Sergeant Dave Stroud, of Dorset Police’s Traffic Unit, said: “I am appealing for witnesses to the collision to come forward and contact police.
“I would also like to hear from anyone who witnessed the manner of driving of either vehicle leading up to the collision.”
Witnesses and anyone with information should call Dorset Police on 101.