Train operator Chiltern Railways has warned customers that no services will operate on Saturday 26 November on any route due to strike action.
There will also be a handful of minor amendments and cancellations to late-night services tonight (Friday 25 November) and early-morning services on Sunday 27 November due to the strike action.
Customers are advised to triple-check their journey before they travel on the Chiltern Railways website or app.
If customers have pre-booked a ticket for 26 November, it will be valid for travel on Friday 25 November or up to and including Tuesday 29 November.
Customers can check these alterations and see further information about how strike action will impact services on the Chiltern Railways strike page (https://www.chilternrailways.co.uk/strike).