DETROIT (AP) — An area with one of the largest Muslim communities outside the Middle East is bracing itself for a 24-hour prayer rally by a group that counts Islam among the ills facing the U.S.

The gathering in Detroit at Ford Field, the stadium where the Detroit Lions play, starts Friday evening and is designed to tackle issues such as the economy, race, same-sex relationships and abortion. But the decade-old organization known as TheCall has said Detroit is a “microcosm of our national crisis” in all areas, including “the rising tide of the Islamic movement.”

Leaders of TheCall believe a satanic spirit is shaping all parts of U.S. society, and it must be challenged through intensive Christian prayer and fasting. Such a demonic spirit has taken hold of specific areas, Detroit among them, organizers say. In the months ahead of their rallies, teams of local organizers often travel their communities performing a ritual called “divorcing Baal,” the name of a demon spirit, to drive out the devil from each location.

“Our concern is that we are literally being demonized by the organizers of this group,” said Dawud Walid, executive director of Council on American-Islamic Relations’ Michigan chapter, which last week urged local mosques and Islamic schools to increase security.