Pakistani police have reportedly used tear gas, batons and fired warning shots - to push protesters away from the American embassy in Islamabad. Eight officers are said to have been injured in the clashes.
More than a thousand demonstrators vented their anger at a U.S.-made film that pokes fun at Islam. Protests flared up across the Muslim world last Tuesday, after a trailer of the film was translated into Arabic and put online.
American diplomatic missions have come under attack in several countries - after the U.S. ambassador to Libya was killed last week.
RT discusses the increasingly tense situation in the Arab World with anti-war activist Brian Becker.