A man who died on a train bound for Victoria station after looking out of the window has been named as a 24-year-old man from East Grinstead in Sussex.
A spokesperson for British Transport Police said: "The man sustained serious head injuries on board a Gatwick Express train travelling to Victoria from Gatwick at around 5.30pm.
"Ambulance crews attended the scene but despite their best efforts, he sadly died a short time later.
"The death is being treated as non-suspicious and the circumstances, including what caused the head injuries, are still being investigated."
Some reports initially claimed the man was "decapitated", but Inspector James Tyrrell from BTP denied this and said, “we are aware of a number of reports on social media which say the man was decapitated, however this is not the case."
His next of kin have been informed and are being supported by officers.
Anyone with information is asked to call BTP on 0800 40 50 40, quoting reference 371 of 7 August."
An earlier version of this article contained speculation as to the cause of the victim’s death. This has since been clarified by the British Transport Police. We have since been asked by some of the victim's relatives to make clear that it has not been established that he was 'leaning' out of the train window when he was struck and killed by a signal gantry on 7 August.