South Western Railway (SWR) is reminding customers of strike action taking place tomorrow, Wednesday 4 October. 

An extremely limited service will run on a small number of lines, with most of the network closed. 

Stuart Meek, South Western Railway's Chief Operating Officer, said: "I'm sorry to say that, due to industrial and strike action by the ASLEF union, we will be forced to make changes to our timetables this week. 

"We will run an extremely limited service on Wednesday 4 October and our advice to customers is to only travel if their journeys are absolutely necessary. 

"We're very sorry for the disruption that this will cause and we're very grateful to our customers for their continued patience."

Services are expected to be very busy, with trains only running between 7am-7pm.  

SWR has advised customers to avoid the first and last trains of the day if possible as these are expected to be extremely busy. 

Trains will only run between: 

• London Waterloo and Basingstoke 
• London Waterloo and Feltham 
• London Waterloo and Woking 
• London Waterloo and Guildford via Woking 
• Basingstoke and Salisbury 

There will be no service on the Island Line. 

Customers are advised to only travel if their journeys are absolutely necessary. 

If you must travel, SWR suggests checking your entire journey using a journey planner, as other train operators are also affected. 

Industrial action will again affect the SWR network on Thursday 5 and Friday 6 October. A normal service is expected to run with a small number of cancellations.