There is a signalling system fault between Swansea and Cardiff Central. This means that trains must run at reduced speed on some lines for safety reasons.

Trains running between these stations may be cancelled, delayed by up to 30 minutes or revised.

This issue is expected to continue to impact services until 16:00.

Great Western Railway customer advice:

You may use your ticket on Transport for Wales services between Carmarthen and Cheltenham Spa via Cardiff Central / Newport (South Wales) at no extra cost.

Check before you travel:

You can check your journey using the National Rail Enquiries real-time Journey Planner.

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.