Great Western Railway warns of Sunday disruption
Rail passengers in the West are being warned of "significant disruption" to train services on Sunday.
Great Western Railway (GWR) said a combination of engineering work and uncertainty over crew availability means services will be severely affected.
No trains will operate between London Paddington and Reading before 11.15 GMT, and afterwards reduced services will run between London and Bristol, Devon and Cornwall.
GWR said tickets for Sunday would be valid on Saturday 23 or Monday 25 November.
It also said that journey planners will not show all the changes to their timetables before Sunday morning because of the complexity of updating the timetable.
On Sunday morning, services will start from or end at Reading, where travellers can change for services to Waterloo station, or local trains to Slough and replacement bus services to Ealing Broadway to access the London Underground.
Travellers are being advised to only travel if absolutely necessary.
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