“Two buses, both carrying South Korean tourists, have collided in Kumamoto Prefecture, southwestern Japan, injuring 27.”

http://newsonjapan.com/html/newsdesk/article/101990.php

This occurred in Aso. The part of the road where the buses collided had been washed away in last year’s heavy rain. According to one report I heard, one of the drivers failed to notice a man at the road who was signaling him to stop. Fortunately, the injuries seem to have been minor.

http://youtu.be/M4UnunYDRBk