Man staring at phone falls off platform

This is the moment a man staring at his phone walks straight off a metro platform and apparently knocks himself out cold.

The images were caught on CCTV at a metro station in Saint Petersburg, Russia, on 6th November.
The footage shows the man walking to the edge of the platform while looking at his phone and not realising that he is about to step into thin air.@procspb, CZ/newsX