KANSAS CITY, Mo. (AP) — A lawsuit filed by a national group seeks to stop teacher-sponsored school prayer sessions at a mid-Missouri high school.

The American Humanist Association's Appignani Humanist Legal Center filed the complaint Wednesday in the U.S. District Court for the Western District of Missouri. It claims that the Fayette High School prayer sessions violate the Establishment Clause of the First Amendment, which says the government may not establish an official religion.

A message left for Fayette R-III School District superintendent Tamara Kimball wasn't immediately returned.

The suit says a teacher led the weekly prayer sessions in her classrooms after the buses arrived in the morning and before classes began for the day. The principal announced the sessions over the public address system.