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4th February 2026
09:38am GMT

Southern, Thameslink, and Gatwick Express services are all facing major disruption this morning after a train derailed.
National Rail has said major disruption affecting London services is now expected to last until the end of the day.
🎥 #LondonBlackfriars - The visual disruption map video has been updated#DisruptionVideos
— National Rail (@nationalrailenq) February 4, 2026
ℹ️ Full video can be found here: https://t.co/xln8VhAUzK pic.twitter.com/UroQkEPmaK
The train derailed close to Selhurst Depot, leading to it blocking the lines towards Norwood Junction and London Bridge.
Fortunately, no one has been injured.
Additionally, a fault with the signalling system between Norwood Junction and London Blackfriars is also behind today's delays.
A number of Southern and Thameslink services running this morning have been altered due to the ongoing disruption.
The Southern services affected are:
Thameslink announced the following services are suspended and will not run in both directions until further notice:
Passengers across the three rail operators have also been advised not to travel.
⚠️URGENT UPDATE⚠️
— Southern (@SouthernRailUK) February 4, 2026
👉Owing to multiple incidents affecting the Southern, Thameslink and Gatwick Express network this morning
⛔Do NOT travel if at all possible
📢If you have already started your journey, you will need to allow up to at least 60 minutes extra time to complete your…
Additionally, disruption on London Overground services between Highbury & Islington and West Croydon is expected until the end of the day, National Rail said.