Two people and a dog needed to be cut free from a car which entered a ditch.
At around 2.19pm today fire crews from Dorchester and Bridport were called to a two-vehicle crash on the A35 at Winterbourne Abbas - which remains closed from the petrol station in Winterbourne Abbas to Long Bredy Hut Lane.
Read more: Major road closed after two-vehicle crash
One of the cars came off the road and fell into a ditch, which had a stream at the bottom. Two people and a dog needed to be cut free.
The other car, which also had two occupants, remained on the road.
All four casualties are in the care of the ambulance service.
A spokesperson for Dorset and Wiltshire Fire and Rescue said: "Fire crews from Dorchester and Bridport attended a road traffic collision involving two vehicles.
"One vehicle had left the road and entered a ditch which had a stream at the bottom. The two occupants of this car and a dog were released by firefighters, who had to cut away the hedgerow to gain access.
"The other vehicle remained on the highway, and the two occupants were able to leave their car under the guidance of ambulance personnel.
"All four casualties were left in the hands of the ambulance crew. The road was completely closed while the emergency services were at work. The incident has now been handed over to the police."
The fire service has now left the scene.
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