The A34 is closed in both directions in Oxfordshire following a serious crash during rush hour, causing miles of traffic to build up.
Road closed between Chilton and Didcot
The road is shut between the A4185 at Chilton and the A4130 at Didcot after a collision involving a motorcycle and a van.
Thames Valley Police and the Thames Valley Air Ambulance are at the scene, while National Highways traffic officers are assisting with traffic management.
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Drivers diverted and warned of delays
Drivers are being diverted and warned to allow extra time for their journeys.
This is a live blog. More to follow.
