A34 Didcot Crash Today: Serious Collision Closes Road as Air Ambulance Attends

A serious crash on the A34 between Didcot and Chilton in Oxfordshire has caused significant disruption, with the road closed and an air ambulance attending the scene.

The collision happened on Friday, September 11, 2026, prompting an emergency response and the closure of the A34 in both directions.

A34 closed following serious crash

Emergency services were called to the A34 following reports of a serious collision.

An air ambulance was among the emergency resources attending the incident, highlighting the severity of the crash. Police also attended and subsequently began work at the scene.

The A34 between Didcot and Chilton was closed in both directions while emergency crews dealt with the incident.

At the time of the initial closure, motorists were warned to expect substantial delays in the area.

Southbound carriageway reopens

The southbound carriageway was later reopened following the emergency response.

However, the northbound A34 remained closed while police carried out a collision investigation.

National Highways warned that the northbound closure was expected to continue into the evening because of the nature of the incident and the investigation work required at the scene.

Traffic caught within the closure was being turned around from the rear.

Major delays for drivers

The crash caused considerable disruption for motorists travelling through the Didcot and Chilton area.

By the early evening, northbound delays approaching the closure were reported at around 60 minutes, while southbound delays had reduced to approximately 15 minutes after that carriageway reopened.

Earlier updates had indicated delays of up to an hour in the affected area.

Drivers were advised to allow additional travel time and follow diversion arrangements while the investigation continued.

Police investigation

The circumstances surrounding the collision have not yet been fully established.

Police collision investigators were working at the scene, meaning the northbound carriageway could not immediately be reopened.

At this stage, details about the vehicles involved, the number of people injured and the extent of any injuries have not been confirmed in the available information.

Further updates are expected as the investigation progresses and emergency services complete their work.

A34 traffic update

The A34 is an important route through Oxfordshire and the closure between Didcot and Chilton has affected motorists travelling in both directions.

Although the southbound side has reopened, the continuing northbound closure is expected to create delays into the evening.

Motorists travelling toward the affected section should check traffic conditions before setting out and allow extra time for their journeys.

Details at a glance

Investigation continues

The A34 remains affected while investigators work to establish exactly what happened.

The road situation may change as police complete their investigation and National Highways works to restore normal traffic flow.

No further details about the circumstances or those involved should be assumed until officially confirmed.

Disclaimer: This article is based on information available at the time of publication and may be updated as authorities release further details. Information about the collision, injuries, road closures and investigation may change as emergency services and police continue their work. Readers are advised to rely on official traffic and emergency-service updates for the latest road conditions.