Commuters faced huge queues today as a strike by South Western Railway got underway.
Members of the RMT union are walking out for five days in the long-running dispute over guards on trains.
Commuters into London Waterloo station were among passengers affected, as well as people heading to Royal Ascot. Buses replaced trains on some routes.
There were chaotic scenes at some stations, with long queues and packed platforms.
One of the biggest queues was at Surbiton, where some passengers said they were told to return after 11am because so many people were trying to get into the station.
Passengers between Egham and Staines faced further delays because of a swan on the railway line.
Thousands of commuters shared their experiences of the travel disruption on social media, with footage showing queues spilling out of Surbiton station in south-west London, and a long way down the street.