Overview
- A Southern Railway service from London Victoria to Eastbourne derailed on Thursday when three carriages left the track and toppled onto their sides between Haywards Heath and Lewes, forcing the immediate evacuation of roughly 150 people on board.
- Emergency services declared a major incident and mounted a large rescue operation using ladders, adjacent fields and a local community centre to evacuate passengers while ambulance crews treated and conveyed injured people to hospital.
- Official updates record two people with serious injuries and around 16 others with less-serious injuries, with some passengers treated at the scene and others taken to local hospitals for further care.
- The Rail Accident Investigation Branch has deployed inspectors and Network Rail has closed all lines through Lewes for evidence gathering and engineering assessments, and disruption is expected to continue into Friday.
- Images showing potentially buckled track and the concurrent heatwave have been reported but investigators have not confirmed a cause, and the crash has renewed scrutiny of rail infrastructure and safety after a separate serious collision in June.