11.   Recent fan violence prompted extra security measures at stadiums Saturday, including deployment of additional police and use of closed-circuit television to monitor spectators.

12.   Recent fan violence prompted extra security measures at stadiums, including deployment of additional police and use of closed-circuit television to monitor spectators.

13.   The continuing violence also prompted increasing alarm in other countries.

14.   The continuing violence is prompting increasing alarm in other countries.

15.   The continuing violence prompted increasing alarm in other countries, with tens of thousands of ethnic Albanians demonstrating in Macedonia, Albania and elsewhere.

16.   The Segi youth movement had vowed to go ahead with the demonstration despite a ban by the regional government prompted by violence that followed previous rallies.

17.   The violence has prompted accusations of police indifference.

18.   The violence has prompted concern about school violence in the United States and has prompted discussion about gun control measures.

19.   The violence prompted authorities to deploy extra soldiers and police at polling stations Sunday to prevent further disruptions.

20.   The violence prompted demonstrations by thousands more labor activists and their supporters.