RAIL services throughout south Devon will be affected by the latest strike action today.
RMT members will be striking today as part of their ongoing dispute over working conditions, pay and job security.
The strike comes as rail bosses announced more than 2,000 job cuts and the closure of 1,000 ticket offices across the network.
Great Western Railway and Cross Country Trains will be among 14 rail companies affected.
In addition, there could be further train disruption until Saturday July 22 due to industrial action short of a strike by Aslef.
GWR says this is likely to cause some short-notice alterations or cancellations and advises passengers to check journeys before setting out.
On the RMT strike days, a significantly reduced, revised timetable will operate across several train operators, including GWR, and many parts of the GWR network will have no service at all.
Services will start later, finish much earlier, only operating for a limited period during the day.
GWR says trains that are operating will be busier than usual.
RMT general secretary Mick Lynch said: ‘I am proud of our members for showing such fortitude and resolve in this long running dispute.
‘Our national dispute is about pay job security and working conditions.
‘The recent attack on ticket offices and the threat to de-staff our railways, has galvanised a huge groundswell of public support which we are grateful for.
‘Our members and our union will not be cowed by rail bosses or government ministers and our dispute will continue until we can reach a negotiated settlement.
‘We remain steadfast in our industrial programme and are available for talks 24/7 with the train operating companies.’
Further strike action is planned for Saturday and 29 July 29.