The officials said a crowd angry over the film set fire Friday to a KFC and an Arby's restaurant. 

They then clashed with police. 

The security officials said police opened fire, killing one of the attackers. 

Twenty-five people were wounded in the melee, including 18 police who were hit with stones and glass. 

The officials spoke on condition of anonymity because they were not allowed to brief the media.

(Copyright 2012 by The Associated Press. All Rights Reserved.)