21.   Then the violence began.

22.   There were conflicting reports about how the violence began.

23.   This was the second deadliest attack since the Palestinian-Israeli violence began last September.

24.   When the violence began in the province, the Serbs of Slovinje told their Albanian neighbors that they had nothing to fear from the army or paramilitary forces.

25.   Police have detained scores of suspects since the violence began, though no one has been charged.

26.   Palestinians charge that the roadblocks, in place since the violence began, have strangled their economy and caused severe hardships.

27.   According to the source, the recent violence began in late November in the eastern region of Namagan with the murder of a local police chief.

28.   Al Najah University, a hotbed for militants, has spawned several suicide bombers since the violence began.

29.   Again political violence has begun, with men in civilian clothes carrying rifles and clubs through opposition strongholds almost every night, beating suspected CUF supporters.

30.   After warnings from Israeli officers, Palestinian security police arrived a half-hour after the violence began to persuade protesters to pull back.