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Incident resolved: major disruption at Clapham Junction expected until 20:00 

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Service alteration details

Incident reported: Friday 31 July 2026 at 13:44

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Last updated

Friday 31 July 2026 at 15:38

Train operators affected

Route(s) affected

Gatwick Express between London Victoria and Brighton

London Overground between Clapham Junction and Shepherds Bush / Dalston Junction / Stratford (London)

Southern between London Victoria and London Bridge / Epsom Downs / Dorking / Selhurst / Sutton / West Croydon / Reigate / Horsham / Littlehampton / Bognor Regis / Portsmouth & Southsea / Portsmouth Harbour, and between London Victoria and Eastbourne / Ore, and also between Watford Junction and East Croydon

Thameslink between St Albans City and Sutton

Description

A trespasser on the railway in the Clapham Junction area earlier today has caused disruption to journeys through this station. Trains may still be cancelled, delayed by up to 80 minutes or revised whilst service recovers.

Major disruption is expected until 20:00.

Gatwick Express services are currently suspended.

Please note, South Western Railway are no longer affected by this disruption.

A visual disruption map video is available

Gatwick Express, Southern, Thameslink customer advice:

All lines are open, however, significant delays, cancellations, and ad-hoc alterations will affect Southern services that run via Clapham Junction until further notice. Gatwick Express is temporarily suspended, and you should allow at least 80 minutes additional time to complete your journey.

For journeys via London Victoria, you are strongly advised to travel via London Bridge or London Waterloo instead. If you are travelling to Gatwick Airport, you should allow plenty of extra time.

What are the changes to Southern services?

The following service changes will apply until further notice. Further changes to Southern services are expected. Where possible, your train may finish or start earlier at different locations, so please check station information screens and journey planning apps before you board.

London Victoria and Eastbourne / Ore services will run once per hour, to and from East Croydon only - You can use alternative Southern services between London Victoria, London Bridge and East Croydon.

Gatwick Express is suspended - You can use alternative Thameslink services from Brighton towards London. Change at East Croydon for a limited Southern services towards London Victoria.

London Victoria to Epsom services are suspended - You can use alternative services towards Epsom from London Bridge.

London Victoria to Reigate services are suspended - You can use alternative Southern or Thameslink services to Redhill, changing for Great Western Railway services from Redhill to Reigate.

London Victoria to London Bridge services are suspended - Please use alternative Southern and Thameslink services, or London buses.

East Croydon to Watford Junction services are suspended - You can use London Overground services between London Euston and Watford Junction.

Is Thameslink affected?

Thameslink services which run between central London and Sutton will be subject to delays and alterations. All services along this route will run via Mitcham Junction in the direction of Sutton, and via Wimbledon in the direction of central London.

What are my alternative travel options?

Your ticket will be accepted on Thameslink services for London Bridge, and on South Western Railway services London Waterloo, Clapham Junction and Wimbledon. You can use London Underground to travel between these stations and London Victoria, or your destination.

Additionally, for journeys in the South London area, your ticket will be accepted on London Buses as required to complete your journey.

Please listen to announcements, check station screens, and use journey planners to help you reach your destination.

Your ticket will be accepted at no additional cost on the below:

  • Great Western Railway services between Dorking and Gatwick Airport

  • Southeastern services between London and Hastings

  • Alternative Southern services in the London area

  • South Western Railway services between London Waterloo and Wimbledon / Wandsworth Town

  • Alternative Thameslink via London Bridge

  • London Trams between Wimbledon, Mitcham Junction, East Croydon, and Beckenham Junction

  • London Overground between London Euston and Watford Junction

  • London Underground services between London Terminals

  • Metrobus 400 between Caterham and East Grinstead

If you're waiting on a train which is delayed between stations:

If your train is delayed between stations, please remain where you are and listen to announcements, or speak to staff for further information. Gatwick Express and Southern will get you moving as soon as possible. They aware of your location, and their teams will be doing everything they can to help you continue your journey.

Please don't leave the train unless you are asked to do so. Other trains may still be moving in the area, and the track is also a very hazardous environment. In areas where the trains are powered by an electric third rail, this usually stays live and dangerous during incidents, and looks the same as other rails.

Planning your journey:

You can see the live departure boards, and view a live map of the network.

You can also view an alternative route guide.

You can use the Southern and Thameslink app to find up-to-date information.

Can you tell me more about the incident?

A trespass incident was reported in the Clapham area earlier this afternoon, and power to the railway lines were switched off. All trains were stopped while emergency services and Network Rail responders dealt with the situation.

All lines are now open, however, disruption will continue until at least later on this evening as trains and crew have become displaced. You will continue to see short notice cancellations and changes to services for a while.

Trespassing on the railway is very dangerous. Trains run all day, every day - whether passenger trains, freight trains or specialist engineering work machines. It's not possible to be sure that you can hear when a train is coming, and in many cases, you won't see a train until it is very close to you.

Check before you travel:

You can check your journey using the National Rail Enquiries real-time Journey Planner.

Compensation:

You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.

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