Emergency services are at the scene of a crash on the A419 in Swindon.
Police and the ambulance service were called to the collision on the Junction 15 roundabout at around 1.20pm this afternoon, Sunday 20 August.
A female driver of a small black Mitsubishi is being treated by paramedics for suspected neck and back injuries.
Wiltshire Police say motorists should avoid the area for some time.