11.   Perez promised a return to the days of subsidies, then abruptly imposed free-market changes that provoked food riots in which hundreds died.

12.   At least four of the inmates who provoked the riot were killed when a homemade grenade exploded, prison director Maj. Carlos Escobar told the Radionet radio network.

13.   Cabinet ministers and security officials have warned that unidentified hard-liners opposed to democratic reforms were plotting to provoke riots on Monday, in an effort to destabilize the government.

14.   Critics speculated then that military hard-liners provoked the riots because they wanted an excuse to crack down on dissidents, a charge that the military has vehemently denied.

15.   Gross said the group was well-organized and was planning to provoke riots, possibly on Tuesday night, apparently as a cover to allow the escape of two prisoners.

16.   He accused police of provoking the riot with a violent response to peace protesters.

17.   He lost an election to Kostunica last year and refused to recognize the results in October, provoking opposition riots.

18.   His death provoked a riot in April in the Nile Delta town of Belqas.

19.   His killing provoked scattered riots, calls to boycott helmets and several vigils.

20.   However, with the peace talks deadlocked, Palestinians warn that continued settlement expansion could provoke riots in the West Bank and Gaza and kill any prospects for peace.