1.   An incident with a couple of heavy-handed cops touched it off, and the riot was on.

2.   It began to look as if a wee riot might be in order.

3.   Such language suggests that the riots were less about forcing material change than about making symbolic gestures.

4.   The display was less hostile than the girl riots of today are meant to be.

5.   The recent riots are evidence of the frailty of the peace agreement.

6.   The riots are a clear manifestation of growing discontent.

7.   The riots were the work of political agitators.

8.   There were more riots in the capital last night when protestors clashed with police.

9.   These latest riots are a clear manifestation of growing discontent.

10.   Violence had broken out, and there had been anti-Catholic riots in Belfast.