Train firm Great Western Railway (GWR) has issued advice to revellers taking the train to next week's Glastonbury Festival - amid fears a rail strike could cause chaos.

Tens of thousands of festival goers are expected to descend on Castle Cary station - the closest station to the festival site at Pilton - as they travel to the event from Wednesday (June 22).

However, rail firms across the country are warning of disruption to services as RMT union staff are due to walk out on Tuesday (June 21), Thursday and Saturday.

It has left some intending to travel by train concerned their journeys could be disrupted - even cancelled.

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Great Western Railway advice for Glastonbury Festival-goers

GWR – the operating company which serves Castle Cary – has issued an update to alleviate the fears of those hoping to travel to the festival by rail.

"We plan to maintain timetabled trains between Castle Cary and London Paddington throughout the course of the Glastonbury Festival," said a GWR spokesperson.

"Some services might be subject to alterations to train times and we will be in contact with customers who have already booked seats on board those trains."

Online journey checkers are expected to be updated with the latest timetable information starting this week.

"We recommend customers who have already bought their train tickets between London and Castle Cary should check that amended plan before either changing their travel arrangements or submitting a refund request for their train ticket," the spokesperson added.

"Other parts of the GWR network are likely to be more affected by the strike action and customers may need to consider alternative ways to travel to a station serving Castle Cary.

"Customers traveling from outside the GWR network should check connecting services with their local train operator."

However, on the Monday following the festival (June 27), the firm said it plans to run a normal service for customers.