A man injured on the track at East Croydon has forced rail lines and the London Overground to close for several hours.
The British Transport Police said officers were called to the line near College Road, Croydon, at 3.38pm, to reports of a casualty.
A spokesperson said: “Paramedics also attended and a man has been taken to hospital for treatment.
“The incident is not being treated as suspicious.”
The London Ambulance Service and air ambulance were also called.
“We sent a number of resources to the scene including an incident response officer, a clinical team manager, a medic in a response car and an ambulance crew,” it said.
“We also dispatched units from our Hazardous Area Response Team and London’s Air Ambulance.
“We treated a man at the scene and took him by road to a major trauma centre.”
Southern Rail said that while lines had now reopened, services were still being delayed and cancelled - and disruption was expected until 9pm.
A spokesperson said: “Sadly, the emergency services had to assist an injured person close to East Croydon station this afternoon, leading to trains in the area being stopped for around an hour.
“Services can now move on all lines again but there may be some delays and revised train times until later this evening as a result.
“We’d ask people to check before they travel and consider if they can take another route as journeys may take significantly longer than usual.”
Southern’s website said: “Most Southern and Thameslink trains via this station will be severely delayed, cancelled or amended (calling at different stations or terminating before they complete their full journeys).
“We expect your journey will take at least one hour longer than usual, and possibly more.”
Trains from London Bridge via Peckham to East Croydon were almost all severely delayed.
Services from Victoria to Croydon appeared to be running slightly better.
Tickets are accepted on alternative routes.
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