11.   A Yemeni chief from the Yam tribe said the clashes began after Saudi security forces stormed mosques in Najran belonging to Ismailis, an offshoot of the Shiite sect.

12.   After midday prayers at mosques, clashes began.

13.   After the clashes began during the rally, most of the students left the square.

14.   An army spokesman said the clash began when an Israeli patrol just outside autonomous territory came under fire from within Gaza.

15.   But witnesses spoke of dozens killed since the clashes began Saturday between Yoruba and Hausa tribal fighters in the impoverished northern neighborhoods of Idi Araba and Mushin.

16.   Clashes began Friday when troops came across the kidnappers and hostages in the jungle on Basilan.

17.   Ethiopia has insisted since the clashes began last May that Eritrean troops should be withdrawn from the two districts for any peaceful resolution of the crisis.

18.   Eye witnesses said the clashes began when security forces used live ammunition to disperse the crowds.

19.   Finally, an afternoon advance on the nearest Israeli military outpost, where the deadly clashes began anew.

20.   For the first time since the clashes began Wednesday, no one was killed on either side.