An elderly woman has suffered serious injuries in a crash on the A34 that has triggered delays.

The air ambulance was dispatched after the collision between a car and a lorry shortly after 11.30am and there are currently delays on the road as a result.

The crash has blocked off the southbound carriageway between the Milton and Chilton Interchanges.

The air ambulance arrived at the scene shortly after 12pm and Oxfordshire Fire and Rescue service freed the woman from a black Mazda shortly after 12.30pm.