The following statement has appeared on the Arriva Trains Wales website
Monday 4 January – Arriva Trains Wales services WILL NOT OPERATE due to train driver unions industrial action (strike).
Industrial action may disrupt early morning services Tuesday 5 January.
Arriva Trains Wales apologise for this disruption and is seeking the soonest resolution.
All Valleys Line services in the GTFM area are operated by Arriva Trains Wales