Self Accident??

For the past 1 week, I have been hearing so many car accident.

This morning, on my way to work, I saw a car plunges over the road kerb. I can't see a second car involve in this accident though. Is it a hit and run? I don't know...Is it self accident?..I don't know..


So people, please do drive safely especially to those who like to show off their driving skills on the road.