Great Western Railway is advising passengers of cancellations this afternoon after flooding on many of its routes.
All lines are closed between Bristol Parkway and Swindon as a result of the bad weather.
There is flooding between Bristol Parkway and Swindon and all lines are closed. London-Cardiff trains cancelled, Swansea trains diverted.
— GWR Help (@GWRHelp) November 21, 2016
The line between Swindon and Bath Spa is also shut in both directions.
GWR says: "Road transport has been requested but is not available in the numbers required to cater for the number of customers travelling."
The company adds that tickets not used today will be valid tomorrow.
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