London 2012 Olympics: Cyclist Killed After Collision With Games Media Bus
The 30 year-old rider, who has not been identified, died after the accident on the slip road outside the Main Press Centre in East London just after 730pm on Wednesday night.
Despite frantic efforts by paramedics, the cyclist was pronounced dead at the scene just over 30 minutes later.
Witnesses reported horrific scenes after seeing the man lying underneath the decker-bus on the A106 about a mile outside the Olympic Park as his mangled white and chrome racing bicycle lay nearby.
It remained unclear on Wednesday night whether the cyclist was involved in the Games - either as an athlete, official or spectator - or was a member of the public.
An investigation has been launched with Games organisers. No arrests have been made.