article_snippet: Hours before the tragedy – just after midnight on
article_snippet: One friend, who did not want to be named, told the Evening Standard:
article_snippet: Emergency services: The scene outside Old Street station in central London after the incident  on Sunday .
article_snippet: Ambulance on the scene: Police  said that on arrival officers discovered two men with serious injuries .
article_snippet: A Tube worker said: ‘The man dropped something down on to the track, a mobile phone or something, and then somehow The man’s got into trouble down there.
article_snippet: British Transport Police described the incident as a ‘tragic accident’.
article_snippet: One Tube worker said a man had been spotted dropping something onto the track on CCTV (file picture)
highlights_snippet: Police investigating and are appealing for witnesses to come forward .