AN OVERTURNED car is blocking the A420 at Cumnor after a collision.

The incident occurred on the southbound carriageway near the junction with the B4017 (Abingdon Road) at about 9am.

Fire crews were called to the scene and arrived at about 9.15am, a spokeswoman said. 

One woman involved in the collision is believed to have been taken to hospital with minor injuries, the spokeswoman added.