Fire appliances from Taunton and Bridgwater were mobilised to a report of a road traffic collision in Dark Lane, Stoke St Gregory at 15:29 this afternoon (Saturday).
On arrival at the scene, fire crews reported one vehicle on its side with one female casualty still inside.
The casualty, who had suspected head injuries, was assisted from the vehicle by fire crews using stabilising equipment and small tools.
One 6 year old child was released from the vehicle before the arrival of the fire service.
Both casualties were assessed by paramedics.