Overview
- A Southern Rail passenger train derailed near Lewes on Thursday afternoon, causing the three rear carriages to overturn and triggering an immediate emergency response.
- British Transport Police, East Sussex fire crews and ambulance teams carried out evacuations on site and completed rescue operations with no deaths or serious injuries reported.
- Passenger accounts and media images described people with cuts and brief entrapment in overturned cars before being helped out or self-evacuating, and some early reports said about 40 people were briefly trapped.
- National Rail and train operators have suspended services through Lewes and Haywards Heath and warned of major delays on the Brighton–London route while the site is cleared.
- The technical cause remains unknown and the Department for Transport and rail authorities are investigating, with extreme heat on the day cited as a complicating factor for rescue work and service planning.