A broken down train in the Severn Tunnel area is causing disruption to trains between Patchway and Severn Tunnel Junction.
As a result of this, trains may be cancelled, delayed or revised.
This is expected to continue until 08:00.
Great Western Railway customers may use their tickets on CrossCountry services via Gloucester.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner
Twitter:
If you would like to follow this incident on Twitter, please use #SevernTunnelJunction
Compensation:
You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.
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