Serious M4 crash: Everything we know as Eastbound to be closed for hours – Gloucestershire Live
The eastbound carriageway is expected to remain shut for some time
Miles O’Leary Senior Content Editor
07:58, 30 Nov 2025
The M4 near Leigh Delamere services(Image: Google Maps)
News Summary:
- Major incident: A serious single-vehicle collision has forced the closure of a section of the M4 motorway eastbound carriageway in Wiltshire.
- Timing: Emergency services were alerted to the crash, involving a car that left the road near Leigh Delamere services, at approximately 2:00 am on Sunday, November 30.
- Closure details: All eastbound lanes were immediately closed between Junction 18 (Bath) and Junction 17 (Chippenham).
- Emergency response: A large number of first responders, including Wiltshire Police, Fire and Rescue, and the South West Ambulance Service, attended the scene.
- Traffic management: Traffic caught within the closure was safely released by being turned around and led off the motorway.
- Duration: National Highways have warned that the carriageway is expected to remain closed for an extended period, potentially lasting “throughout this morning and into the afternoon,” to allow for investigation and recovery work.
- Diversion: Motorists have been advised to follow a diversion route utilizing the A46, A420, and A350 roads.
- M4 shut down after serious crash prompts mass emergency response – read the live blog here.
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