Published on
February 4, 2026
Passengers across south-east England are facing major disruptions after a series of incidents have severely impacted rail services. A “do not travel” alert was issued this morning by the Govia Thameslink Railway (GTR) franchise, which operates Southern, Thameslink, and Gatwick Express trains, urging commuters to avoid travel if possible. The alert is in response to a train derailment and a signalling fault that have disrupted operations throughout the region.
Train Derailment and Signalling Fault Cause Widespread Disruptions
The ongoing travel chaos began earlier today following a derailment inside a depot at Selhurst, located in south-east London. This incident, coupled with a signalling fault between London Blackfriars and Norwood Junction, has resulted in significant delays and cancellations for passengers across the affected areas.
The derailment occurred at Selhurst Depot, one of the major train maintenance hubs for GTR services, while the signalling problem between Blackfriars and Norwood Junction caused fewer tracks to be available for trains, with those still running forced to travel at slower speeds. As a result, major disruptions have impacted travel on routes stretching across south-east England.
Affected Routes and Services
A wide range of services has been impacted due to these incidents. Southern, Thameslink, and Gatwick Express trains are all facing delays, cancellations, and limited services. Affected routes include:
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- London Bridge to East Grinstead
- Orpington to Luton
- Brighton to Cambridge
- Bedford to Three Bridges
Additionally, services running between Welwyn Garden City and Sevenoaks are only operating between London Blackfriars and Sevenoaks, while those between Rainham and Luton are limited to the section between Rainham and Dartford. Some services that typically run from Horsham to Peterborough and Brighton to Bedford are being diverted via Selhurst instead of Norwood Junction.
With fewer available tracks and slower speeds, the situation remains fluid, and passengers are advised to monitor updates from National Rail Enquiries. GTR has also advised travelers to consider alternative routes wherever possible.
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GTR’s Urgent Request for Passengers
Govia Thameslink Railway (GTR) has urged all passengers to delay their journeys if they can and to check train services before traveling. The operator is recommending that commuters allow for an additional 60 minutes of travel time to account for delays. Services are expected to be running at a reduced capacity, and travelers are advised to be flexible with their travel plans.
Impact on GTR’s Services and Passenger Numbers
GTR, the UK’s largest rail operator, carries around 18% of the country’s train passengers. The franchise includes several well-known operators, such as Southern, Thameslink, Great Northern, and Gatwick Express. GTR’s services are vital for those traveling across south-east England, and the current disruptions are expected to affect thousands of commuters, especially during the morning rush hour.
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The GTR network serves key routes into London, as well as connections to popular destinations across the region. The ongoing incidents are causing widespread problems, affecting both local and long-distance passengers. GTR has yet to provide a clear timeline for when normal service will resume, but the situation remains under close monitoring by the company and transport authorities.
Nationalisation of UK Rail Operators
The timing of these disruptions comes as the UK government continues its nationalisation of rail services across the country. Last weekend, West Midlands Trains was the latest operator to be nationalised, with GTR expected to follow suit in May. This move is part of a broader effort to bring major rail companies back under public ownership, following years of fragmented private operations. The nationalisation process aims to improve service reliability and reduce costs for passengers, though current delays highlight the challenges the system still faces.
Severe Delays Expected to Continue
For now, rail passengers in south-east England are advised to avoid travel if possible. The derailment at Selhurst Depot and the signalling fault between Blackfriars and Norwood Junction have caused a ripple effect across multiple services, with delays expected to continue for the rest of the day. The “do not travel” alert remains in effect, with the public urged to stay updated on the latest rail service information.
GTR has reiterated its commitment to resolving the issues as quickly as possible but warns that the situation is likely to take time to clear. As efforts to fix the disruptions continue, passengers are encouraged to use alternative forms of transport or postpone their journeys to avoid further delays.


