There is disruption on South West Trains between Guildford and London Waterloo because of a fallen tree on the line at Effingham Junction.
All the lines are blocked at present and there is no estimate time for normal service.
More top news
Wednesday afternoon's weather for the east of the region
Wednesday afternoon's weather for the west of the region
More than 300 Red Kites are visiting Reading every day - to feast on meat left out for them by locals