INDUSTRIAL action across the UK's rail network will affect some Transport for Wales services, the operator has confirmed.

The National Union of Rail, Maritime, and Transport Workers (RMT) has announced strike action will take place on Tuesday, June 21, Thursday, June 23, and Saturday, June 25, which will significantly disrupt the rail network across the whole of the UK.

TfW is not in dispute with RMT.

However, the industrial action resulting from the dispute between RMT and Network Rail means we will be unable to operate our rail services on Network Rail infrastructure.

A spokesperson for TfW said: "The majority of rail services across the Wales and Borders network will be suspended, with the exception of services on the Core Valley Lines (CVL) north of Radyr in South Wales.

"There will be services to/from Radyr to Treherbert, Aberdare and Merthyr Tydfil (reduced to an hourly service in each direction), with a bus service connection to Cardiff Central Station. We expect these services to be very busy.

"There will be no services on the CVL routes to Rhymney, Coryton, Cardiff Bay and the City Line as signalling for those lines is operated by Network Rail.

"There is also expected to be disruption on the days prior and after the industrial action. We will release more information as soon as possible."

Customers with existing tickets for travel from Monday, June 20 to Sunday, June 26 can use those tickets anytime between now and June 20. Alternatively, customers may claim a full refund by contacting customer.relations@tfwrail.wales.

In the meantime, TfW is suspending sales of advance tickets for the first three strike dates to minimise the number of people disrupted.

Customers are advised to check the TfW website, and the websites of other operators, for updates.