I feel so sad that another accident happened to Sungmin, just when his foot got better. From what I know he slipped on a fans camera cover, and he couldn't get up even with support. So in the end the sercurity had to help him out.

Links here:

http://sup3rjunior.com/2013/06/03/130603-sungmin-at-incheon-airport-fanaccount-1p/

http://sup3rjunior.com/2013/06/03/130603-sungmin-at-incheon-airport-from-jakarta-2p/