Last updated:Today at 21:43
Train companies affected:Southeastern, Thameslink
Last updated:Today at 21:25
Train companies affected:Avanti West Coast, Caledonian Sleeper, Northern, TransPennine Express
Incident reported: Wednesday 20 August 2025 at 06:33
Incident cleared: Wednesday 20 August 2025 at 09:45
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Wednesday 20 August 2025 at 09:45
Between Aylesbury and London Marylebone
Trains are now running normally following a fault with the signalling system at Chalfont & Latimer