Passengers are being reminded to check before they travel between Carmarthen and Pembroke Dock later this month when Network Rail will be carrying out essential track renewals and drainage work.
Buses will replace trains between the two stations from Monday 18 March to Wednesday 27 March inclusive.
Each train will be replaced by two buses, with one calling at all stops (Whitland, Narberth, Kilgetty, Saundersfoot, Tenby, Penally, Manorbier, Lamphey, Pembroke and Pembroke Dock) and a faster service calling only at Whitland and Tenby.
Network Rail engineers will be replacing more than 200 metres of track and installing more than 300 tonnes of new ballast (track stone) close to Pembroke station. In addition, essential drainage work will be carried out between Narberth and Kilgetty stations.
Nick Millington, Network Rail Wales and Borders route director, said: “We are working really hard to improve train service punctuality and this essential work in Pembrokeshire is a part of our commitment to do that.
“We recognise there is never a good time to close the railway, but we have planned the renewals to minimise disruption as much as possible.
“I would like to thank passengers for their patience and urge them to check their journeys before travelling.”
Image credit: Network Rail
