Passenger train derails in southern England, injuring 11

A Southern Rail passenger train carrying 150 people derailed near Lewes, England, on August 13, 2026, leaving 11 people injured, including two with severe trauma. Three of the train's eight carriages overturned, prompting a major incident declaration and a three-hour evacuation. While the Rail Accident Investigation Branch is investigating the cause, the incident occurred during a 35°C heatwave, causing widespread rail disruptions across southern England.

Lewes train derailment

• ▪The derailment occurred at approximately 3:54 p.m. local time on August 13, 2026, near the Lewes railway station, roughly 45 miles south of London.
• ▪National Rail and Southern Rail suspended all train services through Lewes and Haywards Heath following the derailment on August 13, 2026.
• ▪A Southern Rail passenger train traveling from London Victoria to Eastbourne derailed near Lewes, East Sussex, England, on Thursday, August 13, 2026.
• ▪The derailed Southern Rail train was carrying approximately 150 passengers when three of its eight carriages left the tracks and overturned on August 13, 2026.

Passenger injuries

• ▪The train derailment near Lewes on August 13, 2026, injured 11 people, with two sustaining serious injuries and nine suffering minor injuries.
• ▪The South East Coast Ambulance Service transported the two seriously injured passengers from the Lewes derailment to a major trauma centre.
• ▪Paramedics assessed and treated several injured passengers at the scene of the Lewes derailment in a field adjacent to the tracks.

Emergency evacuation procedures

• ▪Several passengers climbed out of the overturned carriages independently or used ladders provided by emergency services to reach safety.
• ▪Passengers from the derailed train near Lewes who did not require hospital treatment were transported to a nearby community center.
• ▪Emergency responders, including firefighters using ten fire engines and three helicopters, evacuated all passengers from the Lewes derailment within three hours.

Major incident declaration

• ▪Assistant Chief Constable Ian Drummond-Smith of the British Transport Police declared the train derailment near Lewes a major incident on August 13, 2026.
• ▪United Kingdom Transport Secretary Heidi Alexander expressed deep concern over the Lewes derailment and stated that the government was assisting passengers.

Rail accident investigation

• ▪Network Rail and the Rail Accident Investigation Branch launched a joint effort to establish the cause of the Lewes derailment.
• ▪The United Kingdom's Rail Accident Investigation Branch deployed a team of investigators to the Lewes derailment site to gather evidence.
• ▪The Lewes derailment occurred during a heatwave in southern England where temperatures reached 35 degrees Celsius, though the cause remains unknown.

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