Gatwick Express passenger was pronounced dead at the scene
A man has died in the UK after leaning out of a train window and being hit by another train.
The Gatwick Express passenger was pronounced dead at the scene after the incident at Wandsworth Common station, London.
A spokeswoman for London Ambulance Service said they were called at 5.34pm.
"We sent an ambulance crew, a single responder and a car and an incident response officer to the scene alongside an air ambulance.
"We treated a person at the scene for a head injury but sadly they were pronounced dead by the doctor from the air ambulance."
A police cordon was in place around the entrance to the station.
Officers carried the man's body, wrapped in a blanket, to the back of a private ambulance.
They placed it carefully in the back before the vehicle was driven slowly from the scene.
Residents said they were shocked to see the air ambulance land on the common earlier in the afternoon.
One told the Press Association: "We were coming back across the common when we saw the helicopter land.
"It was at about 6pm. There were lots of police and ambulances there, it was disconcerting."
Another said: "I heard a man was hit by a train and heard the air ambulance land on the common. It's such a horrible thing to have happened."
A spokesman for British Transport Police said the incident was not being treated as suspicious.
A file is being prepared for the UK coroner.