U.S. Embassy advertisements condemning an anti-Islam video appeared on Pakistani television on Thursday in an attempt to undercut anger against the United States, where the film was produced. Hundreds of youths, however, clashed with security officials as they tried in vain to reach the embassy in Islamabad amid outrage in many countries over the film's vulgar depiction of the Prophet Muhammad.

The ads reflected efforts by the U.S. government to distance itself from the video in a country where anti-American sentiment already runs high. Violence linked to the movie has left at least 30 people in seven countries dead, including the American ambassador to Libya. Two people have died in protests in Pakistan....

The television ads in Pakistan feature clips of President Barack Obama and Secretary of State Hillary Rodham Clinton during press appearances in Washington in which they condemned the video. Their words were subtitled in Urdu.

"We absolutely reject its content and message," said Clinton in the advertisement.

The advertisements end with the seal of the American Embassy in Islamabad, the Pakistani capital....