A crash on the M40 near Banbury, Oxfordshire, caused major disruption on Friday, September 4, 2026, after the northbound carriageway was closed and lengthy delays developed across the area.

The collision occurred on the northbound M40 between Junction 10 at Ardley and Junction 11 at Banbury. Emergency and recovery crews were called to the scene as authorities worked to manage the incident and clear the affected section of motorway.

Reports described significant congestion following the closure, with motorists facing delays of around two hours and queues extending for several miles. Drivers approaching Banbury were advised to allow additional time for their journeys and prepare for difficult traffic conditions.

M40 Northbound Crash Causes Major Traffic Disruption

The M40 is an important route connecting communities and major destinations across the region, meaning incidents on the motorway can quickly affect surrounding roads. The Friday crash created widespread disruption for motorists traveling toward Banbury and those using nearby routes to avoid the closure.

Emergency responders and recovery teams remained involved as efforts continued to deal with the collision and make the motorway safe for traffic. Drivers were urged to follow temporary traffic-management measures and instructions from authorities while the incident was being cleared.

At the time of the available reports, authorities had not confirmed the exact number of vehicles involved. Information about injuries was also limited, and there was no confirmed report establishing that anyone had been seriously injured or killed in the collision.

The cause of the crash had likewise not been established. Officials had not publicly attributed the incident to speeding, weather, road conditions, mechanical failure or driver behaviour.

Motorists planning to travel through the Banbury area were encouraged to check the latest traffic information before setting out, as conditions could change while recovery and clearance operations continued.

Drivers Urged to Expect Delays

The disruption demonstrated how quickly a collision on a busy motorway can affect thousands of journeys. With the northbound M40 restricted between Junction 10 and Junction 11, motorists faced extended travel times and congestion on alternative routes.

Further information about the vehicles involved, any injuries and the circumstances surrounding the collision may be released as authorities complete their investigation and recovery operations.

For now, drivers traveling around Banbury should remain alert, allow extra journey time and follow official traffic-management instructions.

The M40 crash remains an important traffic incident for motorists in Oxfordshire, with authorities continuing efforts to restore normal conditions and clear the effects of the collision.