Engineering work is taking place at Swansea station, closing lines early on Sunday morning.
Great Western Railway:
The 07:53 Swansea to London Paddington service will start from Cardiff Central. An earlier bus will run from Swansea to Cardiff Central to connect with the train. A second bus will run from Neath to Cardiff Central via Port Talbot Parkway and Bridgend to connect with this train.
The 08:37 Swansea to London Paddington service will be retimed to start at 08:40.
Transport for Wales:
Before 09:45, buses will replace trains between Cardiff Central and Swansea / Carmarthen.
Check before you travel:
These changes are not currently shown in the National Rail Enquiries Journey Planner, please check back nearer to the time of travel.
Replacement Bus Travel Advice:
For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use this page
You can find the location of your bus replacement by typing in your station hereÂ