Brand new trains have been added to the Transport for Wales (TfW) network as part of a £800m investment.
The new trains will increase capacity in the Wales and border network and improve services for TfW passengers.
The first of two brand new trains manufactured by Stadler are being delivered to the TfW depot at Canton for testing.
The new Class 231 FLIRT trains arrived in Wales from Switzerland and are the first of 35 to be delivered by Stadler over the next two years.
The new trains will form a key part of the South Wales Metro, the three quarters of billion-pound project from TfW.
TfW is investing a total of £800m into brand new trains by working with train manufacturers Stadler and CAF.
These trains will begin to run on the network next year.
Lee Waters, Deputy Minister for Climate Change spoke on how the new trains will help create a greener transport network in Wales.
Mr Waters said: “The new vehicles are a transformational improvement on the trains that they will be replacing across South Wales.
“[New trains are] encouraging people to leave their cars behind and move onto a more sustainable form of transport.
James Price, TfW CEO commented on how the introduction of the new trains will improve TfW’s network.
Mr Price said: “The arrival of these brand-new trains is another major milestone for TfW.
“[The arrival] signifies another step forward on our transformational programme to deliver a transport network that the people of Wales can be proud of.
“[The trains] will have more and improved seating, provide air conditioning, power sockets and passenger information screens with up-to-the-minute travel information.
“The customer is at the heart of our planning at TfW.
“These trains will have more space for bikes, people with limited mobility and pushchairs.
“People will now start to see some of our new trains being tested on our network.
“We’re looking forward to seeing the first new units enter service for customers next year.”