A trackside fire on Sunday, 27 September 2026, near Clapham Junction damaged signalling equipment, causing major disruptions across London railway stations, especially affecting Southern Rail and Gatwick Express services in and out of London Victoria.
Affected Routes and Rail Services
Train services between Clapham Junction and London Victoria faced cancellations, delays up to 60 minutes, diversions, and revised schedules. Southern and Gatwick Express routes were heavily impacted, with Gatwick Express services suspended between London Victoria and Brighton. Southern Rail reported cancellations and delays on routes linking Sutton, East Croydon, Selhurst, and London Bridge. Thameslink trains serving Sutton to Kentish Town, West Hampstead Thameslink, St Albans
City, and Luton also experienced service disruptions.
Disruption Timing, Repairs, and Underground Impact
Disruption was anticipated to continue throughout Monday, 28 September, with emergency engineering repairs ongoing overnight and into the day. Southern Rail aimed to resume normal service between London Victoria and Eastbourne/Ore from 4:24pm. An extremely reduced service operated in and out of London Victoria until at least 2pm, later extended to 4pm. Additionally, signalling faults between Streatham and Tulse Hill forced reduced-speed running and further delays for Southern and Thameslink services. The London Underground experienced severe delays on the District Line between Tower Hill and Upminster, caused by a prior fire alert at
Plaistow, along with severe delays on the Victoria Line due to a track fault at Brixton. Part suspension affected the Northern Line between Edgware and Camden Town due to a passenger illness on a train.
Passenger Advice and Ticket Acceptance
Passengers were advised to anticipate up to 60 minutes additional travel time for journeys involving London Victoria. Tickets valid on Southern and Gatwick Express were accepted on alternative routes across London Buses, C2C, DLR, London Underground, Overground, South Western Railway, Greater Anglia, Southeastern, Great Northern, Weaver Line, and Suffragette Line services via any reasonable route. Despite train cancellations, coach services to Gatwick Airport operated normally.
Social media reported conflicting announcements and passenger confusion during the morning of 28 September, particularly regarding cancellations and revised routes south of London Victoria, including trains from Sutton, West Croydon, Brighton, and Eastbourne.
Statements from Rail Authorities
National Rail confirmed the fire caused significant signalling damage near Clapham Junction, leading to extensive delays and cancellations between Clapham Junction and London Victoria. A spokesperson for Southern and Gatwick Express stated: “On Sunday, 27 September, there was a fire next to the track in the Clapham Junction area. The fire caused damage to the signalling equipment on the route and repairs are ongoing. As a result,
trains between Clapham Junction and London Victoria may be cancelled, delayed by up to 60 minutes, diverted or revised.” National Rail advised disruptions would persist at least until 4pm on Monday with emergency repairs underway.
Ongoing Repairs and Disruption Outlook
Teams worked overnight on restoring signalling functionality between Clapham Junction and London Victoria, with further engineering efforts continuing through the day. Disruptions included cancellations of up to 20 routes between 10:30am and 1pm on 28 September. Despite progress, National Rail reported that major disruption was expected until 4pm, extending earlier estimates of a 2pm resolution. Services running slower between Streatham and Tulse Hill continued due
to signalling faults, affecting northbound Southern and Thameslink trains. Passengers were urged to seek alternative routes and allow additional travel time for journeys involving central London stations connected to the damaged signalling area.
