11.   In the past, rioters there have been young men.

12.   Media reports said many rioters were aborigines.

13.   Media reports said many rioters were aborigines and that police fired several warning shots.

14.   Rioters are young and angry have-nots cut off from the Asian economic dream.

15.   Rioters are young, angry have-nots cut off from the Asian economic dream.

16.   Several rioters were arrested, state radio and witnesses said.

17.   Some residents also said some rioters were youths affiliated with the ruling party, who fought youths from an opposition group.

18.   The identified rioters were fans of both Juventus and Fiorentina, two first division teams with a long tradition of rivalry.

19.   The groups wanted to show that the rioters were an exception.

20.   The rioters were fans of both Juventus and Fiorentina, two first division teams with a tradition of rivalry.