Thousands are expected to take part in the demonstration which is thought to be the biggest since 2010. They're campaigning against fees and cuts and calling for free education. Two further days of action have been organised for December.
A major signalling problem in the Wimbledon area blocked both of the lines away from London Waterloo - all lines now open again. South West Trains are making changes to services to try and mitigate delays._ _
- London Waterloo to Dorking services will not run in either direction from 13:24 until further notice.
- London Waterloo to Hampton Court will not run in either direction from 13:06 until further notice.
- London Waterloo to Guildford via Cobham services will call additionally at Berrylands in both directions.
- Train services between London Waterloo and Salisbury/Exeter/Bristol will not run between Basingstoke and London Waterloo. Customers will need to change trains at Basingstoke to complete their journey.