A man who advocated for attacks against the creators of “South Park” and others he believed were enemies of Islam was sentenced to more than 11 years in prison Friday in a federal court in Alexandria.

Jesse Curtis Morton, 33, had pleaded guilty in February to conspiring to commit murder, making threatening communications and using the Internet to place others in fear. He ran the Web site for a radical group named “Revolution Muslim.”

The New York City man admitted he took steps with Zachary Chesser, of Fairfax County, to encourage violent attacks of the writers of “South Park” after an episode that depicted Muhammad in a bear suit.

Morton also conspired with Chesser and others to solicit the murder of an artist tied to the “Everybody Draw Muhammad Day” movement in 2010. Chesser was sentenced to 25 years in prison last year for making threats and trying to join a terrorist group.

Federal prosecutors said Revolution Muslim’s Web site, which has been taken down, had inspired a number of extremists, including “Jihad Jane” Colleen LaRose and Jose Pimentel, a man who plotted a New York City bombing.

Before his sentencing, Morton apologized saying he had moderated his extreme views.

“Ultimately, my efforts were self defeating,” Morton said. “I contributed to a clash of civilizations.”